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21849-70-7

21849-70-7 structure

21849-70-7 structure

Name: 2',4',3,4-Tetrahydroxy chalcone
Chemical Name: butein
CAS Number: 21849-70-7
Molecular Formula: C₁₅H₁₂O₅
Molecular Weight: 272.253
Create Date: 2017-03-28 11:14:19
Modify Date: 2025-08-24 23:53:34

Name	butein
Synonyms	2-Propen-1-one, 1-(2,4-dihydroxyphenyl)-3-(3,4-dihydroxyphenyl)- 3,4,2',4'-tetrahydroxychalcone 2',3,4,4'-tetrahydroxychalcone 2',4',3,4-Tetrahydroxy chalcone 1-(2,4-Dihydroxyphenyl)-3-(3,4-dihydroxyphenyl)-2-propen-1-one 2',3,4,4'-tetrahydrochalcone 2',4',3,4-tetrahydroxychalcone

Density	1.5±0.1 g/cm3
Boiling Point	560.9±50.0 °C at 760 mmHg
Molecular Formula	C₁₅H₁₂O₅
Molecular Weight	272.253
Flash Point	307.1±26.6 °C
Exact Mass	272.068481
PSA	97.99000
LogP	2.66
Vapour Pressure	0.0±1.6 mmHg at 25°C
Index of Refraction	1.748

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UD5574130

CHEMICAL NAME :: 2-Propen-1-one, 1-(2,4-dihydroxyphenyl)-3-(3,4-dihydroxyphenyl)-

CAS REGISTRY NUMBER :: 21849-70-7

LAST UPDATED :: 198909

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C15-H12-O5

MOLECULAR WEIGHT :: 272.27

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: 610 mg/kg

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

REFERENCE :: PCJOAU Pharmaceutical Chemistry Journal (English Translation). Translation of KHFZAN. (Plenum Pub. Corp., 233 Spring St., New York, NY 10013) No.1- 1967- Volume(issue)/page/year: 20,406,1986

Safety Phrases	22-24/25

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