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Home > products > 4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-

4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-7-methoxy- cas no:90-19-7

Synonyms: Flavone,3,3',4',5-tetrahydroxy-7-methoxy- (7CI,8CI); Rhamnetin (6CI);3,3',4',5-Tetrahydroxy-7-methoxyflavone;3,5,3',4'-Tetrahydroxy-7-methoxyflavone; 7-Methoxyquercetin; 7-Methylquercetin;7-O-Methylquercetin; C.I. 75690; LY 805921; NSC 19802; Quercetin 7-methylether; b-Rhamnocitrin

Identification
Name4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-
CAS90-19-7
SynonymsFlavone,3,3',4',5-tetrahydroxy-7-methoxy- (7CI,8CI); Rhamnetin (6CI);3,3',4',5-Tetrahydroxy-7-methoxyflavone;3,5,3',4'-Tetrahydroxy-7-methoxyflavone; 7-Methoxyquercetin; 7-Methylquercetin;7-O-Methylquercetin; C.I. 75690; LY 805921; NSC 19802; Quercetin 7-methylether; b-Rhamnocitrin
EINECS(EC#)201-974-1
Molecular FormulaC16H12 O7
Molecular Weight316.26
Chemical Properties
refractive index1.74
storage temp2-8°C
Safety Data

Hazard Xi: Irritant;
Risk R36/37/38
Safety

Safety Information of Rhamnetin (90-19-7):
Hazard Codes: Xi
Xi: Irritant
Risk Statements: 36/37/38
36/37/38: Irritating to eyes, respiratory system and skin 
Safety Statements: 26-36/37
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
36/37: Wear suitable protective clothing and gloves 
WGK Germany: 3
RTECS: LK8748000
F: 3-10
F3: Hygroscopic.
F10: Keep under argon
 


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