Velutin
Suppliers
Names
[ CAS No. ]:
25739-41-7
[ Name ]:
Velutin
[Synonym ]:
4',5-dihydroxy-3',7-dimethoxyflavone
5,4'-dihydroxy-7,3'-dimethoxyflavone
Flavoyadorigenin B
5-Hydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4H-chromen-4-one
chrysoeriol-7-methyl ether
5,4'-dihydroxy-7,3'-dimethoxylflavone
4H-1-Benzopyran-4-one, 5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-
luteolin 7,3'-dimethyl ether
Velutin
7,3'-di-O-methylluteolin
Chemical & Physical Properties
[ Density]:
1.4±0.1 g/cm3
[ Boiling Point ]:
567.5±50.0 °C at 760 mmHg
[ Molecular Formula ]:
C17H14O6
[ Molecular Weight ]:
314.289
[ Flash Point ]:
213.1±23.6 °C
[ Exact Mass ]:
314.079041
[ PSA ]:
89.13000
[ LogP ]:
2.06
[ Vapour Pressure ]:
0.0±1.6 mmHg at 25°C
[ Index of Refraction ]:
1.646
Safety Information
[ Hazard Codes ]:
Xi
[ HS Code ]:
2914509090
Synthetic Route
Precursor & DownStream
Precursor
DownStream
Customs
[ HS Code ]: 2914509090
[ Summary ]:
HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%