Ethynyl estradiol

Modify Date: 2026-07-02 11:23:47

Ethynyl estradiol structure	Common Name	Ethynyl estradiol
	CAS Number	57-63-6	Molecular Weight	296.403
	Density	1.2±0.1 g/cm3	Boiling Point	457.2±45.0 °C at 760 mmHg
	Molecular Formula	C₂₀H₂₄O₂	Melting Point	182-183 °C(lit.)
	MSDS	Chinese USA	Flash Point	211.2±23.3 °C
	Symbol	GHS07, GHS08	Signal Word	Danger

Use of Ethynyl estradiol

Ethynyl estradiol is an orally bio-active estrogen used in almost all modern formulations of combined oral contraceptive pills.Target: Estrogen ReceptorEthinyl estradiol (EE), also sometimes written as ethinylestradiol, ethynyl estradiol, or ethinyl estradiol, is a derivative of 17β-estradiol (E2), the major endogenous estrogen in humans. EE is an orally bioactive estrogen used in many formulations of combined oral contraceptive pills. It is one of the most commonly used medications for this purpose. Transdermal ethinyl estradiol carries a greater risk of clot formation and venous thromboembolism than 17 beta estradiol, which some have theorized to be related to different amounts of hepatic metabolism after absorption. The same contraindications and precautions apply for EE as with other estrogen medications.Estinyl was a preparation of EE alone that was used for the management of menopausal symptoms and female hypogonadism. EE is released into the environment as a xenoestrogen from the urine and feces of people who take it as a medication. The major concern with unopposed estrogen is of endometrial cancer. As such, the medication is generally prescribed with progesterone in the setting of birth control. The first orally active semisynthetic steroidal estrogen, EE (17α-ethynylestradiol), the 17α-ethynyl analog of E2, was synthesized in 1938 by Hans Herloff Inhoffen and Walter Hohlweg at Schering AG in Berlin.

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name	17α-ethynylestradiol
Synonym	More Synonyms

This table contains bioactivity, target information and biological‑assay experimental data of this compound.

Description	Ethynyl estradiol is an orally bio-active estrogen used in almost all modern formulations of combined oral contraceptive pills.Target: Estrogen ReceptorEthinyl estradiol (EE), also sometimes written as ethinylestradiol, ethynyl estradiol, or ethinyl estradiol, is a derivative of 17β-estradiol (E2), the major endogenous estrogen in humans. EE is an orally bioactive estrogen used in many formulations of combined oral contraceptive pills. It is one of the most commonly used medications for this purpose. Transdermal ethinyl estradiol carries a greater risk of clot formation and venous thromboembolism than 17 beta estradiol, which some have theorized to be related to different amounts of hepatic metabolism after absorption. The same contraindications and precautions apply for EE as with other estrogen medications.Estinyl was a preparation of EE alone that was used for the management of menopausal symptoms and female hypogonadism. EE is released into the environment as a xenoestrogen from the urine and feces of people who take it as a medication. The major concern with unopposed estrogen is of endometrial cancer. As such, the medication is generally prescribed with progesterone in the setting of birth control. The first orally active semisynthetic steroidal estrogen, EE (17α-ethynylestradiol), the 17α-ethynyl analog of E2, was synthesized in 1938 by Hans Herloff Inhoffen and Walter Hohlweg at Schering AG in Berlin.
Related Catalog	Signaling Pathways >> Others >> Estrogen Receptor/ERR Research Areas >> Endocrinology Natural Products >> Steroids
Target	Human Endogenous Metabolite
References	[1]. Djerassi C. Chemical birth of the pill. 1992. Am J Obstet Gynecol. 2006 Jan;194(1):290-8.

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density	1.2±0.1 g/cm3
Boiling Point	457.2±45.0 °C at 760 mmHg
Melting Point	182-183 °C(lit.)
Molecular Formula	C₂₀H₂₄O₂
Molecular Weight	296.403
Flash Point	211.2±23.3 °C
Exact Mass	296.177643
PSA	40.46000
LogP	4.52
Vapour Pressure	0.0±1.2 mmHg at 25°C
Index of Refraction	1.624
InChIKey	BFPYWIDHMRZLRN-SLHNCBLASA-N
SMILES	C#CC1(O)CCC2C3CCc4cc(O)ccc4C3CCC21C
Storage condition	-20°C Freezer
Water Solubility	ethanol: 50 mg/mL, clear, slightly yellow

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

Ethynyl estradiol MSDS(Chinese)

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: RC8925000

CHEMICAL NAME :: 19-Nor-17-alpha-pregna-1,3,5(10)-trien-20-yne-3,17-di ol

CAS REGISTRY NUMBER :: 57-63-6

BEILSTEIN REFERENCE NO. :: 2419975

LAST UPDATED :: 199806

DATA ITEMS CITED :: 106

MOLECULAR FORMULA :: C20-H24-O2

MOLECULAR WEIGHT :: 296.44

WISWESSER LINE NOTATION :: L E5 B666TTT&J E1 FQ F1UU1 OQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - woman

DOSE/DURATION :: 21 mg/kg/21D-I

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - nausea or vomiting Nutritional and Gross Metabolic - body temperature increase

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 960 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 471 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Kidney, Ureter, Bladder - other changes

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >2 gm/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Blood - hemorrhage

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 950 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 250 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Behavioral - ataxia Kidney, Ureter, Bladder - other changes

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >3 gm/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Blood - hemorrhage

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 500 ug/kg/5D-I

TOXIC EFFECTS :: Endocrine - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 270 mg/kg/27D-I

TOXIC EFFECTS :: Liver - changes in liver weight Blood - normocytic anemia Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 108 mg/kg/90D-I

TOXIC EFFECTS :: Blood - normocytic anemia Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - changes in ovarian weight

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 475 mg/kg/95D-I

TOXIC EFFECTS :: Blood - hemorrhage Blood - normocytic anemia Blood - leukopenia

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - woman

DOSE/DURATION :: 2738 ug/kg/10Y-I

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - angiosarcoma

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 6 ug/kg/2Y-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Endocrine - tumors Skin and Appendages - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Implant

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5 mg/kg

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Skin and Appendages - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Implant

SPECIES OBSERVED :: Rodent - hamster

DOSE/DURATION :: 621 mg/kg

TOXIC EFFECTS :: Tumorigenic - neoplastic by RTECS criteria Kidney, Ureter, Bladder - Kidney tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 245 mg/kg/35W-C

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Reproductive - Tumorigenic effects - ovarian tumors Reproductive - Tumorigenic effects - uterine tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Implant

SPECIES OBSERVED :: Rodent - hamster

DOSE/DURATION :: 800 mg/kg/34W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Kidney, Ureter, Bladder - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - woman

DOSE/DURATION :: 102 mg/kg/5Y-I

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Liver - tumors

TYPE OF TEST :: TD - Toxic dose (other than lowest)

ROUTE OF EXPOSURE :: Implant

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5 mg/kg

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Skin and Appendages - tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 500 ug/kg

SEX/DURATION :: female 5 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - uterus, cervix, vagina Reproductive - Fertility - other measures of fertility

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 500 ug/kg

SEX/DURATION :: female 5 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - menstrual cycle changes or disorders Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 160 ug/kg

SEX/DURATION :: female 57 week(s) pre-mating

TOXIC EFFECTS :: Reproductive - Fertility - other measures of fertility

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Unreported

DOSE :: 20 ug/kg

SEX/DURATION :: female 4 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Unreported

DOSE :: 500 ug/kg

SEX/DURATION :: female 1-5 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 560 ug/kg

SEX/DURATION :: male 14 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - testes, epididymis, sperm duct Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 4500 ng/kg

SEX/DURATION :: female 1-9 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 250 ug/kg

SEX/DURATION :: female 1-4 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - litter size (e.g. # fetuses per litter; measured before birth) Reproductive - Fertility - other measures of fertility

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 860 ng/kg

SEX/DURATION :: female 1 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - uterus, cervix, vagina

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 750 ug/kg

SEX/DURATION :: female 15-17 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - skin and skin appendages

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 55 ug/kg

SEX/DURATION :: female 11 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 1 mg/kg

SEX/DURATION :: male 10 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - testes, epididymis, sperm duct Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 1 mg/kg

SEX/DURATION :: female 1 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 5 ug/kg

SEX/DURATION :: female 1 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - ovaries, fallopian tubes Reproductive - Maternal Effects - uterus, cervix, vagina Reproductive - Fertility - other measures of fertility

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 4 ug/kg

SEX/DURATION :: male 1 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - prostate, seminal vesicle, Cowper's gland, accessory glands

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 28 ug/kg

SEX/DURATION :: female 3-9 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 600 ug/kg

SEX/DURATION :: female 17-20 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - urogenital system

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Implant

DOSE :: 10 mg/kg

SEX/DURATION :: female 24 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - ovaries, fallopian tubes Reproductive - Maternal Effects - uterus, cervix, vagina Reproductive - Fertility - other measures of fertility

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Unreported

DOSE :: 130 ug/kg

SEX/DURATION :: male 13 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - testes, epididymis, sperm duct

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Unreported

DOSE :: 26 ug/kg

SEX/DURATION :: female 13 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - ovaries, fallopian tubes

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 300 ng/kg

SEX/DURATION :: female 3 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - uterus, cervix, vagina

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 40 ug/kg

SEX/DURATION :: female 3-4 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - abortion

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 120 ug/kg

SEX/DURATION :: female 1 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 200 ug/kg

SEX/DURATION :: female 8 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Embryo or Fetus - fetal death Reproductive - Specific Developmental Abnormalities - musculoskeletal system

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 70 ug/kg

SEX/DURATION :: female 11-17 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - urogenital system

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 70 ug/kg

SEX/DURATION :: female 11-17 day(s) after conception

TOXIC EFFECTS :: Reproductive - Effects on Newborn - delayed effects

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 280 mg/kg

SEX/DURATION :: female 28 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 1200 ng/kg

SEX/DURATION :: female 3 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - uterus, cervix, vagina

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 400 ug/kg

SEX/DURATION :: female 11-12 day(s) after conception

TOXIC EFFECTS :: Reproductive - Tumorigenic effects - testicular tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intravaginal

DOSE :: 280 mg/kg

SEX/DURATION :: female 28 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 500 ug/kg

SEX/DURATION :: female 1-6 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 4 ug/kg

SEX/DURATION :: female 1 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - other measures of fertility

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 100 ug/kg

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 25 ug/kg

SEX/DURATION :: female 1 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - other measures of fertility

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

DOSE :: 6 ug/kg

SEX/DURATION :: female 1-3 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Unreported

DOSE :: 19 ug/kg

SEX/DURATION :: female 1-19 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea) Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Unreported

DOSE :: 125 ug/kg

SEX/DURATION :: female 1 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Fertility - other measures of fertility

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 20 mg/kg

SEX/DURATION :: female 4 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Fertility - mating performance (e.g. # sperm positive females per # females mated; # copulations per # estrus cycles) Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 90 mg/kg

SEX/DURATION :: female 1-9 day(s) after conception

TOXIC EFFECTS :: Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea) Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 70 ug/kg

SEX/DURATION :: female 7 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Maternal Effects - uterus, cervix, vagina

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Implant

DOSE :: 20 mg/kg

SEX/DURATION :: female 10 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Fertility - female fertility index (e.g. # females pregnant per # sperm positive females; # females pregnant per # females mated) Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Implant

DOSE :: 4 mg/kg

SEX/DURATION :: female 10 day(s) pre-mating

TOXIC EFFECTS :: Reproductive - Fertility - mating performance (e.g. # sperm positive females per # females mated; # copulations per # estrus cycles)

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Implant

DOSE :: 160 mg/kg

SEX/DURATION :: male 55 week(s) pre-mating

TOXIC EFFECTS :: Reproductive - Paternal Effects - testes, epididymis, sperm duct

TYPE OF TEST :: Morphological transformation

TYPE OF TEST :: DNA adduct

TYPE OF TEST :: Unscheduled DNA synthesis

TYPE OF TEST :: Unscheduled DNA synthesis

TYPE OF TEST :: Micronucleus test

TYPE OF TEST :: Unscheduled DNA synthesis

TYPE OF TEST :: Sister chromatid exchange

TYPE OF TEST :: Cytogenetic analysis

MUTATION DATA

TYPE OF TEST :: Cytogenetic analysis

TEST SYSTEM :: Mammal - domestic Cells - not otherwise specified

DOSE/DURATION :: 74100 ug/L

REFERENCE :: AJOGAH American Journal of Obstetrics and Gynecology. (C.V. Mosby Co., 11830 Westline Industrial Dr., St. Louis, MO 63146) V.1- 1920- Volume(issue)/page/year: 120,390,1974 *** REVIEWS *** IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 21,233,1979 IARC Cancer Review:Animal Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 6,77,1974 TOXICOLOGY REVIEW ACEDAB Acta Endocrinologica, Supplementum (Copenhagen). (Periodica, Skolegade 12 E, DK-2500 Valby, Denmark) No.1- 1948- Volume(issue)/page/year: 185,169,1974 TOXICOLOGY REVIEW RSTEBF Research on Steroids. (Elsevier Science Pub. Co., Inc., 52 Vanderbilt Ave., New York, NY 10017) V.1- 1964- Volume(issue)/page/year: 6,455,1975 TOXICOLOGY REVIEW CMROCX Current Medical Research and Opinion. (Clayton-Wray Pub. Ltd., 1a High St., Alton, Hants., UK) V.1- 1972- Volume(issue)/page/year: 4,309,1976 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84691 No. of Facilities: 68 (estimated) No. of Industries: 1 No. of Occupations: 6 No. of Employees: 2770 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84691 No. of Facilities: 26 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 853 (estimated) No. of Female Employees: 692 (estimated)

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol	GHS07, GHS08
Signal Word	Danger
Hazard Statements	H302-H350
Precautionary Statements	P201-P308 + P313
Personal Protective Equipment	Eyeshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes	T:Toxic
Risk Phrases	R45;R22
Safety Phrases	S53-S36/37/39-S45
RIDADR	2811.0
WGK Germany	3
RTECS	RC8925000
HS Code	2937290090

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

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Ethynyl estradiol

CAS#:57-63-6

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Literature: Pharmazie, , vol. 39, # 1 p. 27 - 29

Estrone

CAS#:53-16-7

Acetylene

CAS#:74-86-2

Ethynyl estradiol

CAS#:57-63-6

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Literature: FR809819 , ;

Estrone

CAS#:53-16-7

Bromo(ethynyl)m...

CAS#:4301-14-8

Ethynyl estradiol

CAS#:57-63-6

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Literature: Chemische Berichte, , vol. 77/79, p. 121,125

Estrone

CAS#:53-16-7

Potassium acetylide

CAS#:1111-63-3

Ethynyl estradiol

CAS#:57-63-6

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Literature: Chemische Berichte, , vol. 77/79, p. 121,125

mestranol

CAS#:72-33-3

Ethynyl estradiol

CAS#:57-63-6

(8S,9S,13S,14S)...

CAS#:26011-40-5

2-Methoxy-Ethyn...

CAS#:22415-44-7

Detail Learn More

Literature: Steroids, , vol. 36, # 3 p. 255 - 282

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor 7
CAS#:68-22-4 Norethindrone CAS#:1111-63-3 Potassium acetylide CAS#:28913-23-7 17 alpha-ethiny... CAS#:53-16-7 Estrone
CAS#:74-86-2 Acetylene CAS#:4301-14-8 Bromo(ethynyl)m... CAS#:72-33-3 mestranol
DownStream 10
CAS#:60134-76-1 Ethynylestradio... CAS#:75803-36-0 ethinyl estradi... CAS#:24560-70-1 Ethynylestradio... CAS#:75803-37-1 17-ethynyl-1,3,...
CAS#:75803-39-3 17 alpha-ethyny... CAS#:75812-41-8 17-ethynyl-1,2,... CAS#:38002-18-5 6-Keto Ethynyl ... CAS#:50394-89-3 2-Hydroxy Ethyn...
CAS#:50394-90-6 4-hydroxyethyny... CAS#:50-28-2 beta-Estradiol

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code	2937290090

This table lists relevant public references with title, journal and publication metadata for this compound.

Cheminformatics analysis of assertions mined from literature that describe drug-induced liver injury in different species.

Chem. Res. Toxicol. 23 , 171-83, (2010)

Drug-induced liver injury is one of the main causes of drug attrition. The ability to predict the liver effects of drug candidates from their chemical structures is critical to help guide experimental...

Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).

J. Sci. Ind. Res. 65(10) , 808, (2006)

Drug-induced liver injury (DILI) is a significant concern in drug development due to the poor concordance between preclinical and clinical findings of liver toxicity. We hypothesized that the DILI typ...

The Japanese toxicogenomics project: application of toxicogenomics.

Mol. Nutr. Food. Res. 54 , 218-27, (2010)

Biotechnology advances have provided novel methods for the risk assessment of chemicals. The application of microarray technologies to toxicology, known as toxicogenomics, is becoming an accepted appr...

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

Estinyl

Prosexol

diprol

Gynolett

eed

LYNORAL

Estigyn

Dufaston

Kolpolyn

MFCD00003690

Anovlar

Ertonyl

Ethynyl estradiol

Estoral

Esteed

Ethinyl estradiol

(17α)-19-Norpregna-1(10),2,4-trien-20-yne-3,17-diol

(8R,9S,13S,14S,17R)-17-Ethinyl-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-3,17-diol

17α-ethynylestradiol

Progylut

Ethynylestradiol

Ethinyloestradiol

(8R,9S,13S,14S,17R)-17-éthynyl-13-méthyl-7,8,9,11,12,13,14,15,16,17-décahydro-6H-cyclopenta[a]phénanthrène-3,17-diol

(17α)-19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol

Etinilestradiol

17alpha-ethynylestradiol

(17b)-17-ethynylestra-1(10),2,4-triene-3,17-diol

17-Ethynyloestra-1,3,5(10)-triene-3,17β-diol

EINECS 200-342-2

Ylestrol

Progynon M

Ethinyl estradiol (USP)

Etivex

17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol

Ethinyl Estradial

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the CAS number of 17α-ethynylestradiol?

A: CAS number of 17α-ethynylestradiol is 57-63-6.

Q: What is the boiling point of 17α-ethynylestradiol?

A: Boiling point of 17α-ethynylestradiol is 457.2±45.0 °C at 760 mmHg.

Q: What is the molecular formula of 17α-ethynylestradiol?

A: Molecular formula of 17α-ethynylestradiol is C20H24O2.

Q: What are the upstream materials of 17α-ethynylestradiol?

A: Related upstream materials(CAS) of 17α-ethynylestradiol: 68-22-4;1111-63-3;28913-23-7;53-16-7;74-86-2;4301-14-8;72-33-3.

Q: What is the LogP of 17α-ethynylestradiol?

A: LogP of 17α-ethynylestradiol is 4.52.

Q: What is the polar surface area (PSA) of 17α-ethynylestradiol?

A: Polar surface area (PSA) of 17α-ethynylestradiol is 40.46000.

Q: How is the water solubility of 17α-ethynylestradiol?

A: Water solubility of 17α-ethynylestradiol: ethanol: 50 mg/mL, clear, slightly yellow.

Q: What is the SMILES notation of 17α-ethynylestradiol?

A: SMILES notation of 17α-ethynylestradiol is C#CC1(O)CCC2C3CCc4cc(O)ccc4C3CCC21C.

Q: What is the molecular weight of 17α-ethynylestradiol?

A: Molecular weight of 17α-ethynylestradiol is 296.403.

Q: What are the storage conditions for 17α-ethynylestradiol?

A: Storage conditions for 17α-ethynylestradiol: -20°C Freezer.

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd

Dayang Chem (Hangzhou) Co., Ltd.

Henan Tianfu Chemical Co., Ltd.

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Ethynyl estradiol
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Ethynyl estradiol
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Ethynyl estradiol
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

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Price: $66/10mM*1mLinDMSO

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