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ChemicalBook--->CAS DataBase List--->90-19-7

90-19-7

90-19-7 Structure

90-19-7 Structure
IdentificationMore
[Name]

Rhamnetin
[CAS]

90-19-7
[Synonyms]

3,3',4',5'-TETRAHYDROXY-7-METHOXYFLAVONE
3,3',4',5-TETRAHYDROXY-7-METHOXYFLAVONE
3,3,4,5-TETRAHYDROXY-7-METHOXYFLAVONE
3,5,3',4'-TETRAHYDROXY-7-METHOXYFLAVONE
7-METHYLQUERCETIN
B-RHAMNOCITRIN
QUERCETIN-7-METHYL ETHER
RHAMNETIN
2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-7-methoxy-4h-1-benzopyran-4-on
3,3’,4’,5-tetrahydroxy-7-methoxy-flavon
7-methoxy-3,3’,4’,5-tetrahydroxy-flavon
7-methoxyquercetin
7-o-methylquercetin
beta-rhamnocitrin
c.i.75690
RHAMNETIN(SH)
7METHOXY3345TETRAHYDROXYFLAVONE
3,5,3'',4''-TETRAHYDROXY-7-METHOXYFLAVONE WITH HPLC
QUERCETIN-7-METHYL ETHER hplc
3,3,4,5-TETRAHYDROXY-7-METHOXYFLAVONE TECH GRADE
[EINECS(EC#)]

201-974-1
[Molecular Formula]

C16H12O7
[MDL Number]

MFCD00016931
[Molecular Weight]

316.26
[MOL File]

90-19-7.mol
Chemical PropertiesBack Directory
[Melting point ]

293-296°C (dec.)
[Boiling point ]

375.7°C (rough estimate)
[density ]

1.3347 (rough estimate)
[refractive index ]

1.4790 (estimate)
[storage temp. ]

2-8°C
[solubility ]

DMSO (Slightly), Methanol (Slightly, Heated)
[form ]

neat
[pka]

6.15±0.40(Predicted)
[color ]

Light Yellow to Dark Yellow
[BRN ]

47741
[Stability:]

Hygroscopic
[LogP]

2.580 (est)
[CAS DataBase Reference]

90-19-7(CAS DataBase Reference)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37:Wear suitable protective clothing and gloves .
[WGK Germany ]

3
[RTECS ]

LK8748000
[F ]

3-10
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

3,5,3',4'-Tetrahydroxy-7-methoxyflavone(90-19-7).msds
Hazard InformationBack Directory
[Uses]

O-Methylated metabolite of the flavanoid Quercertin (Q509500) with antioxidant activity.
[Definition]

ChEBI: A monomethoxyflavone that is quercetin methylated at position 7.
[storage]

4°C, protect from light
[Purification Methods]

Crystallise rhamnetin from EtOH (m 292-293o), aqueous EtOH (m 294-296o) or MeOH (m 290-294o). or Me2CO/MeOH. [Kuhn & Low Chem Ber 77 211 1944, Jurd J Am Chem Soc 80 5531 1958.] The tetra-acetate has m 189-190o (from Me2CO/MeOH). [Beilstein 18 H 245, 18 II 237, 18 III/IV 3474.]
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

90-19-7(sigmaaldrich)
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