4',5-Dihydroxyflavone

Suppliers

Names

[ CAS No. ]:
6665-67-4

[ Name ]:
4',5-Dihydroxyflavone

[Synonym ]:
4H-1-Benzopyran-4-one, 5-hydroxy-2-(4-hydroxyphenyl)-
4',5-Dihydroxyflavone
5-Hydroxy-2-(4-hydroxyphenyl)-4H-chromen-4-one
4',5-dihydroxy flavone
5,4'-Dihydroxyflavone

Chemical & Physical Properties

[ Density]:
1.4±0.1 g/cm3

[ Boiling Point ]:
486.0±45.0 °C at 760 mmHg

[ Melting Point ]:
239-240ºC

[ Molecular Formula ]:
C15H10O4

[ Molecular Weight ]:
254.238

[ Flash Point ]:
190.0±22.2 °C

[ Exact Mass ]:
254.057907

[ PSA ]:
70.67000

[ LogP ]:
2.32

[ Vapour Pressure ]:
0.0±1.3 mmHg at 25°C

[ Index of Refraction ]:
1.699

[ Storage condition ]:
2-8℃

Safety Information

[ HS Code ]:
2914501900

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 2,6-Dihydroxyacetophenone
  • 2-Iodo-1,3-benzenediol
  • 4-(5-tributylstannyl-1,2-oxazol-3-ylidene)cyclohexa-2,5-dien-1-one
  • 4-(tert-butyldimethylsilanyloxy)benzoic acid methyl ester
  • Methyl 4-hydroxybenzoate
  • 5-Hydroxyflavone
  • 4-hydroxybenzaldehyde
  • 5,4'-diacetoxyflavanone

DownStream

  • 5-Hydroxy-2-(4-methoxyphenyl)-4H-chromen-4-one

Customs

[ HS Code ]: 2914501900

[ Summary ]:
2914501900 other ketone-phenols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Related Compounds

  • 4',5-Di-O-acetyl Genistein
  • 4',5-dimethylangelicin
  • 4',5-Dichloro-4''-fluoro-2-hydroxy-3-biphenylcarboxy-o-toluidide
  • 4',5-dihydroxy-7,8-dimethoxyflavone
  • 5-hydroxy-3,7-dimethoxy-2-[4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]chromen-4-one
  • 4',5-Dihydroxy-3',5',6,7-tetramethoxyflavone