L-Epinephrine hydrochloride

Modify Date: 2026-07-01 12:02:46

L-Epinephrine hydrochloride Structure
L-Epinephrine hydrochloride structure
Common Name L-Epinephrine hydrochloride
CAS Number 55-31-2 Molecular Weight 219.665
Density N/A Boiling Point 413.1ºC at 760 mmHg
Molecular Formula C9H14ClNO3 Melting Point 157°C
MSDS N/A Flash Point 207.9ºC

 Use of L-Epinephrine hydrochloride


L-Epinephrine hydrochloride ((-)-Epinephrine hydrochloride; L-Adrenaline hydrochloride; (-)-Adrenalin hydrochloride), an endogenous neurotransmitter hormone, is used for the treatment of allergic and respiratory disorders[1].

 Names

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

Name (R)-adrenaline hydrochloride
Synonym More Synonyms

 L-Epinephrine hydrochloride Biological Activity

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

Description L-Epinephrine hydrochloride ((-)-Epinephrine hydrochloride; L-Adrenaline hydrochloride; (-)-Adrenalin hydrochloride), an endogenous neurotransmitter hormone, is used for the treatment of allergic and respiratory disorders[1].
Related Catalog
Target

IC50: Endogenous neurotransmitter hormone[1]

References

[1]. Zwicker P, et al.A proteomic approach for the identification of immunotoxic properties of Tulipalin A.Proteomics. 2016 Dec;16(23):2997-3008.

[2]. McCluskey J, et al. Tulipalin A induced phytotoxicity.Int J Crit Illn Inj Sci. 2014 Apr;4(2):181-3.

[3]. National Toxicology Program, et al.NTP Toxicology and Carcinogenesis Studies of l-Epinephrine Hydrochloride (CAS No. 55-31-2) in F344/N Rats and B6C3F1 Mice (Inhalation Studies). Natl Toxicol Program Tech Rep Ser. 1990 Mar;380:1-205.

 Chemical & Physical Properties

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

Boiling Point 413.1ºC at 760 mmHg
Melting Point 157°C
Molecular Formula C9H14ClNO3
Molecular Weight 219.665
Flash Point 207.9ºC
Exact Mass 219.066223
PSA 72.72000
LogP 1.54350
InChIKey ATADHKWKHYVBTJ-FVGYRXGTSA-N
SMILES CNCC(O)c1ccc(O)c(O)c1.Cl

 Toxicological Information

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

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DO3150000
CHEMICAL NAME :
Benzyl alcohol, 3,4-dihydroxy-alpha-((methylamino)methyl)-, hydrochloride, (-)-
CAS REGISTRY NUMBER :
55-31-2
LAST UPDATED :
199712
DATA ITEMS CITED :
22
MOLECULAR FORMULA :
C9-H13-N-O3.Cl-H
MOLECULAR WEIGHT :
219.69
WISWESSER LINE NOTATION :
QR BQ DYQ1M1 &GH -L

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
24 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 180,155,1969
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
5 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 180,155,1969
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
50 ug/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - respiratory stimulation Gastrointestinal - changes in structure or function of salivary glands
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 24,101,1925
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraduodenal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
35 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AIPTAK Archives Internationales de Pharmacodynamie et de Therapie. (Heymans Institute of Pharmacology, De Pintelaan 185, B-9000 Ghent, Belgium) V.4- 1898- Volume(issue)/page/year: 180,155,1969
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
50 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 13,51,1963
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
4664 ug/kg
TOXIC EFFECTS :
Vascular - BP lowering not characterized in autonomic section
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 90,110,1947
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1980 ug/kg
TOXIC EFFECTS :
Behavioral - convulsions or effect on seizure threshold Behavioral - excitement
REFERENCE :
JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 87,214,1946
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
140 ug/kg
TOXIC EFFECTS :
Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea Lungs, Thorax, or Respiration - other changes
REFERENCE :
EJPHAZ European Journal of Pharmacology. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1967- Volume(issue)/page/year: 9,289,1970
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
2 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 13,51,1963
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
200 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 13,51,1963 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
12500 ug/m3/6H/14D-I
TOXIC EFFECTS :
Related to Chronic Data - death
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-380,1990
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
40 mg/m3/6H/13W-I
TOXIC EFFECTS :
Cardiac - changes in heart weight Endocrine - changes in adrenal weight Related to Chronic Data - death
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-380,1990
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
5 mg/m3/6H/1.3Y-I
TOXIC EFFECTS :
Liver - changes in liver weight
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-380,1990
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
50 mg/m3/6H/14D-I
TOXIC EFFECTS :
Related to Chronic Data - death
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-380,1990
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
40 mg/m3/6H/13W-I
TOXIC EFFECTS :
Gastrointestinal - other changes Liver - changes in liver weight Related to Chronic Data - death
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-380,1990
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
3 mg/m3/6H/1.3Y-I
TOXIC EFFECTS :
Kidney, Ureter, Bladder - changes in bladder weight
REFERENCE :
NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No.206- Volume(issue)/page/year: NTP-TR-380,1990 ** REPRODUCTIVE DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intraperitoneal
DOSE :
125 ug/kg
SEX/DURATION :
female 17 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - blood and lymphatic systems (including spleen and marrow)
REFERENCE :
BJPCBM British Journal of Pharmacology. (Macmillan Press Ltd., Houndmills, Basingstoke, Hants. RG21 2XS, UK) V.34- 1968- Volume(issue)/page/year: 43,270,1971
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
3200 ug/kg
SEX/DURATION :
female 13-20 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Effects on Newborn - stillbirth
REFERENCE :
CJPPA3 Canadian Journal of Physiology and Pharmacology. (National Research Council of Canada, Publication Sales and Distribution, Ottawa ON K1A OR6, Canada) V.42- 1964- Volume(issue)/page/year: 43,473,1965
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intravenous
DOSE :
7950 ng/kg
SEX/DURATION :
female 22 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)
REFERENCE :
ANREAK Anatomical Record. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1906/08- Volume(issue)/page/year: 153,373,1965 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M4602 No. of Facilities: 37 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 372 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M4602 No. of Facilities: 284 (estimated) No. of Industries: 1 No. of Occupations: 12 No. of Employees: 7694 (estimated) No. of Female Employees: 6481 (estimated)

 Safety Information

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

Risk Phrases 24/25-36/37/38
Safety Phrases 26-36/37-45
RIDADR 3249
Packaging Group II
Hazard Class 6.1(a)

 L-Epinephrine hydrochlorideBioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Carcinogenesis bioassays from the Carcinogenic Potency Database (CPDB)
Source: 25294
Target: N/A
External Id: cpdb
Total 1, Current Page 1 of 1
1

 Synonyms

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

[3H]-(+/-)-Epinephrine hydrochloride
DL-EPINEPHRINE HYDROCHLORIDE
4-(1-Hydroxy-2-(methylamino)ethyl)-1,2-benzenediol hydrochloride
rs-epinephrine hcl
Racepinephrine/Adrenaline HCL
(+/-)-EPINEPHRINE HYDROCHLORIDE
(+/-)-adrenaline hydrochloride
L-Epinephrine hydrochloride
(-)-3,4-DIHYDROXY-α-((METHYLAMINO)METHYL)BENZYL ALCOHOL HYDROCHLORIDE
(+/-)-ADRENALIN HYDROCHLORIDE
4-[1-Hydroxy-2-(methylamino)ethyl]-1,2-benzenediol hydrochloride (1:1)
epinephrine HCl
RAC EPINEPHRINE HCL
(R/S)-adrenaline hydrochloride
l-1-(3,4-dihydroxyphenyl)-2-methylamino-1-ethanol hydrochloride
1,2-Benzenediol, 4-[1-hydroxy-2-(methylamino)ethyl]-, hydrochloride (1:1)
EINECS 200-230-3
UNII:336096P2WE
MFCD00801067
4-[1-Hydroxy-2-(methylamino)ethyl]benzene-1,2-diol hydrochloride (1:1)

 L-Epinephrine hydrochloride | FAQ

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

Q: What is the melting point of (R)-adrenaline hydrochloride?
A: Melting point of (R)-adrenaline hydrochloride is 157°C.
Q: What is the CAS number of (R)-adrenaline hydrochloride?
A: CAS number of (R)-adrenaline hydrochloride is 55-31-2.
Q: What is the InChIKey of (R)-adrenaline hydrochloride?
A: InChIKey of (R)-adrenaline hydrochloride is ATADHKWKHYVBTJ-FVGYRXGTSA-N.
Q: What are the uses of (R)-adrenaline hydrochloride?
A: Main uses of (R)-adrenaline hydrochloride: L-Epinephrine hydrochloride ((-)-Epinephrine hydrochloride; L-Adrenaline hydrochloride; (-)-Adrenalin hydrochloride), an endogenous neurotransmitter hormone, is used for the treatment of allergic and respiratory disorders[1].
Q: What is the boiling point of (R)-adrenaline hydrochloride?
A: Boiling point of (R)-adrenaline hydrochloride is 413.1ºC at 760 mmHg.
Q: What is the molecular weight of (R)-adrenaline hydrochloride?
A: Molecular weight of (R)-adrenaline hydrochloride is 219.665.
Q: What is the SMILES notation of (R)-adrenaline hydrochloride?
A: SMILES notation of (R)-adrenaline hydrochloride is CNCC(O)c1ccc(O)c(O)c1.Cl.
Q: What is the English name of (R)-adrenaline hydrochloride?
A: The English name of (R)-adrenaline hydrochloride is (R)-adrenaline hydrochloride.
Q: What is the polar surface area (PSA) of (R)-adrenaline hydrochloride?
A: Polar surface area (PSA) of (R)-adrenaline hydrochloride is 72.72000.
Q: What is the safety information for (R)-adrenaline hydrochloride?
A: Safety information for (R)-adrenaline hydrochloride: 26-36/37-45.

 L-Epinephrine hydrochloridefactory

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

Shanghai Nianxing Industrial Co., Ltd
Henan Tianfu Chemical Co., Ltd.
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