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4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-2,3-dihydro-3,5,7-trihydroxy-, (2R,3R)- cas no:480-18-2

Synonyms: 4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-2,3-dihydro-3,5,7-trihydroxy-, (2R-trans)-;Flavanone,3,3',4',5,7-pentahydroxy- (8CI);(+)-Dihydroquercetin;(+)-Taxifolin;(+)-trans-Taxifolin;(2R,3R)-(+)-Taxifolin;(2R,3R)-3,3',4',5,7-Pentahydroxyflavanone;(2R,3R)-Dihydroquercetin;2,3-Dihydroquercetin;3,5,7,3',4'-Pentahydroxyflavanone;Dihydroquercetin;Diquertin;Distylin;Lariksin;Lavitol;Taxifolin;Taxifoliol;

Identification
Name4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-2,3-dihydro-3,5,7-trihydroxy-, (2R,3R)-
CAS480-18-2
Synonyms4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-2,3-dihydro-3,5,7-trihydroxy-, (2R-trans)-;Flavanone,3,3',4',5,7-pentahydroxy- (8CI);(+)-Dihydroquercetin;(+)-Taxifolin;(+)-trans-Taxifolin;(2R,3R)-(+)-Taxifolin;(2R,3R)-3,3',4',5,7-Pentahydroxyflavanone;(2R,3R)-Dihydroquercetin;2,3-Dihydroquercetin;3,5,7,3',4'-Pentahydroxyflavanone;Dihydroquercetin;Diquertin;Distylin;Lariksin;Lavitol;Taxifolin;Taxifoliol;
EINECS(EC#)207-543-4
Molecular FormulaC15H12O7
Molecular Weight304.27
Chemical Properties
AppearanceYellowish powder
refractive index1.762
storage temp-20?C Freezer
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
HazardclassIRRITANT
Safety Data

Risk R22
Safety

Moderately toxic by intraperitoneal route. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.
Risk Statements : 22: Harmful if swallowed 
Safety Statements : 22: Do not breathe dust
24/25: Avoid contact with skin and eyes
WGK Germany : 3
RTECS : LK6920000


Toxicity
1.    

mmo-sat 100 µg/plate

    ENMUDM    Environmental Mutagenesis. 3 (1981),401.
2.    

mma-sat 1660 nmol/plate

    MUREAV    Mutation Research. 54 (1978),297.
3.    

cyt-ham:fbr 1 g/L/48H

    MUREAV    Mutation Research. 48 (1977),337.
4.    

ipr-rat LD50:1200 mg/kg

    JJPAAZ    Japanese Journal of Pharmacology. 21 (1971),377.
5.    

ipr-mus LD50:985 mg/kg

    RPTOAN    Russian Pharmacology and Toxicology. Translation of FATOAO. 38 (1975),213.

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