Phenolphthalein

Modify Date: 2025-08-19 21:24:02

Phenolphthalein structure	Common Name	Phenolphthalein
	CAS Number	77-09-8	Molecular Weight	318.323
	Density	1.4±0.1 g/cm3	Boiling Point	557.8±50.0 °C at 760 mmHg
	Molecular Formula	C₂₀H₁₄O₄	Melting Point	258-263 °C
	MSDS	Chinese USA	Flash Point	206.5±23.6 °C
	Symbol	GHS02, GHS07, GHS08	Signal Word	Danger

Use of Phenolphthalein

Phenolphthalein is a widely applied but toxic indicator dye.

Name	Phenolphthalein
Synonym	More Synonyms

Description	Phenolphthalein is a widely applied but toxic indicator dye.
Related Catalog	Signaling Pathways >> Others >> Others Research Areas >> Others Dye Reagents
References	[1]. Fleischmann C, et al. Color indicator for supramolecular polymer chemistry: phenolphthalein-containing thermo- and pH-sensitive N-(Isopropyl)acrylamide copolymers and β-cyclodextrin complexation. Macromol Rapid Commun. 2013 Jul 12;34(13):1085-9.

Density	1.4±0.1 g/cm3
Boiling Point	557.8±50.0 °C at 760 mmHg
Melting Point	258-263 °C
Molecular Formula	C₂₀H₁₄O₄
Molecular Weight	318.323
Flash Point	206.5±23.6 °C
Exact Mass	318.089203
PSA	66.76000
LogP	2.63
Vapour Pressure	0.0±1.6 mmHg at 25°C
Index of Refraction	1.693
InChIKey	KJFMBFZCATUALV-UHFFFAOYSA-N
SMILES	O=C1OC(c2ccc(O)cc2)(c2ccc(O)cc2)c2ccccc21
Stability	Stable. Incompatible with strong oxidizing agents, alkalies.
Water Solubility	<0.1 g/100 mL

Phenolphthalein MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: SM8380000

CHEMICAL NAME :: Phenolphthalein

CAS REGISTRY NUMBER :: 77-09-8

BEILSTEIN REFERENCE NO. :: 0284423

LAST UPDATED :: 199803

DATA ITEMS CITED :: 20

MOLECULAR FORMULA :: C20-H14-O4

MOLECULAR WEIGHT :: 318.34

WISWESSER LINE NOTATION :: T56 BVO DHJ D- D-/R DQ 2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 29 mg/kg

TOXIC EFFECTS :: Gastrointestinal - gastritis Gastrointestinal - nausea or vomiting Kidney, Ureter, Bladder - other changes in urine composition

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >1 gm/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 500 mg/kg

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

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 324 gm/kg/13W-C

TOXIC EFFECTS :: Liver - changes in liver weight Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) 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 - mouse

DOSE/DURATION :: 106 gm/kg/13W-C

TOXIC EFFECTS :: Liver - changes in liver weight Blood - changes in erythrocyte (RBC) count Related to Chronic Data - changes in testicular weight

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 364 gm/kg/2Y-C

TOXIC EFFECTS :: Tumorigenic - Carcinogenic by RTECS criteria Kidney, Ureter, Bladder - tumors Endocrine - adrenal cortex tumors

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 281 gm/kg/2Y-C

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

TYPE OF TEST :: Micronucleus test

MUTATION DATA

TYPE OF TEST :: Cytogenetic analysis

TEST SYSTEM :: Rodent - hamster Ovary

DOSE/DURATION :: 50 mg/L

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 341,151,1995 *** REVIEWS *** TOXICOLOGY REVIEW DAPOAG Deutsche Apotheker. (Postfach 1650, 6370 Oberusel/Taunas, Fed. Rep. Ger.) V.1- 1949- Volume(issue)/page/year: 27,151,1975 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - T0011 No. of Facilities: 8 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 31 (estimated) NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 56240 No. of Facilities: 6160 (estimated) No. of Industries: 102 No. of Occupations: 43 No. of Employees: 43092 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X9187 No. of Facilities: 117 (estimated) No. of Industries: 3 No. of Occupations: 6 No. of Employees: 1946 (estimated) No. of Female Employees: 1408 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 56240 No. of Facilities: 6900 (estimated) No. of Industries: 89 No. of Occupations: 57 No. of Employees: 73297 (estimated) No. of Female Employees: 18309 (estimated)

Symbol	GHS02, GHS07, GHS08
Signal Word	Danger
Hazard Statements	H225-H319-H341-H350
Precautionary Statements	P201-P210-P280-P308 + P313-P337 + P313-P403 + P235
Personal Protective Equipment	Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	Xn:Harmful
Risk Phrases	R22;R40
Safety Phrases	S45-S36/37-S33-S24-S16-S7
RIDADR	UN 1993
RTECS	SM8380000
Hazard Class	3.0
HS Code	29322910

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Phenolphthalein

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spiro(isobenzof...

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Literature: Baeyer Justus Liebigs Annalen der Chemie, 1882 , vol. 212, p. 349 Full Text Show Details Meyer,R. Chemische Berichte, 1891 , vol. 24, p. 1414,2600 Chemische Berichte, 1893 , vol. 26, p. 205 Full Text Show Details Baeyer Chemische Berichte, 1871 , vol. 4, p. 659 Chemische Berichte, 1876 , vol. 9, p. 1233 Full Text Show Details Baeyer Justus Liebigs Annalen der Chemie, 1880 , vol. 202, p. 56,63

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Literature: Nishizawa, Masako; Yabusaki, Yoshiyasu; Kanaoka, Masaharu Bioscience, Biotechnology and Biochemistry, 2011 , vol. 75, # 1 p. 89 - 94

Phthalic acid

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Literature: Copisarow Journal of the Chemical Society, 1920 , vol. 117, p. 215

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Literature: Baeyer Chemische Berichte, 1879 , vol. 12, p. 644 Justus Liebigs Annalen der Chemie, 1880 , vol. 202, p. 52

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Phenolphthalein

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Literature: Yamaguchi; Mori; Suketa Chemical and Pharmaceutical Bulletin, 1990 , vol. 38, # 1 p. 159 - 163

Precursor 7
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DownStream 10
CAS#:462-47-5 3-aminopropanethiol CAS#:2012-29-5 2,4-diiodophenol CAS#:609-23-4 2,4,6-Triiodophenol CAS#:108-95-2 Phenol
CAS#:21147-23-9 2,4-Dimethoxy-4... CAS#:123-31-9 Hydroquinone CAS#:88-99-3 Phthalic acid CAS#:605-32-3 2-HYDROXYANTHRA...
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HS Code	29322910

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Name: Primary qHTS assay for inhibitors of alpha-synuclein gene (SNCA) expression
Source: NCGC
External Id: SNCA-p-activity-luciferase

Name: Fluorescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_AG_FLUO8_1536_1X%ACT PRUN

Name: Cytochrome P450 Family 1 Subfamily A Member 2 (CYP1A2) small molecule antagonists: lu...
Source: 824
External Id: CYP273

Name: Partition coefficient (logD6.5)
Source: ChEMBL
Target: N/A
External Id: CHEMBL646647

Name: Increase the activity of the Burkholderia fixLJ 2-component system
Source: ICCB-Longwood/NSRB Screening Facility, Harvard Medical School
Target: Burkholderia multivorans
External Id: HMS1625

Name: Fluorescence-based cell-based primary high throughput screening assay to identify pos...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_PAM_FLUO8_1536_1X%ACT PRUN

Name: qHTS Assay for Small Molecule Inhibitors of the Human hERG Channel Activity
Source: NCGC
External Id: HERG01

Name: qHTS for Inhibitors of TGF-b: Cytotox Counterscreen
Source: NCGC
Target: N/A
External Id: SMAD3201

Name: uHTS identification of cystic fibrosis induced NFkb Inhibitors in a fluoresence assay
Source: Burnham Center for Chemical Genomics
Target: cystic fibrosis transmembrane conductance regulator [Homo sapiens]
External Id: SBCCG-A764-CF-PAF-Primary-Assay

Name: Alphascreen assay for small molecules abrogating mHTT-CaM Interaction
Source: 24983
Target: Huntingtin
External Id: KUHTS-Muma KU-CaM-Htt INH-01

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