5,7-Dihydroxychromone

Suppliers

Names

[ CAS No. ]:
31721-94-5

[ Name ]:
5,7-Dihydroxychromone

[Synonym ]:
4H-1-Benzopyran-4-one, 5,7-dihydroxy-
5,7-dihydroxy-4H-1-benzopyran-4-one
5,7-Dihydroxychromone
2H-1-Benzopyran-2-one, 5,7-dihydroxy-
5,7-Dihydroxy-4H-chromen-4-one
5,7-Dihydroxy-2H-chromen-2-one
5,7-dihydroxy-chromen-4-one
5,7-Dihydroxy-chromen-4-on
5,7-DIHYDROXYCOUMARIN

Chemical & Physical Properties

[ Density]:
1.6±0.1 g/cm3

[ Boiling Point ]:
399.4±42.0 °C at 760 mmHg

[ Melting Point ]:
232-273℃

[ Molecular Formula ]:
C9H6O4

[ Molecular Weight ]:
178.141

[ Flash Point ]:
170.8±21.4 °C

[ Exact Mass ]:
178.026611

[ PSA ]:
70.67000

[ LogP ]:
0.54

[ Vapour Pressure ]:
0.0±1.0 mmHg at 25°C

[ Index of Refraction ]:
1.689

Safety Information

[ Hazard Codes ]:
Xi

[ HS Code ]:
2914400090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 2',4',6'-Trihydroxyacetophenone Monohydrate
  • Methanesulfonyl chloride
  • N,N-Dimethylformamide
  • benzyl (2R,3S,5S)-(-)-6-oxo-2,3-diphenyl-5-cyclopentyl-4-morpholinecarboxylate
  • 2,4-Dihydroxyacetophenone
  • Formyl acetate
  • 5,7-dihydroxy-4-oxochromene-2-carboxylic acid

DownStream

  • biochanin A
  • Chrysin
  • 6,8-dibenzyl-5,7-dihydroxychromen-4-one

Customs

[ HS Code ]: 2914400090

[ Summary ]:
2914400090 other ketone-alcohols and ketone-aldehydes。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Related Compounds

  • 2-Methyl-5,7-dihydroxychromone
  • di-C-benzyl-5,7-dihydroxychromone
  • 5,7-Dihydroxychromone 7-rutinoside
  • 2-Methyl-8-isopentyl-5,7-dihydroxychromone
  • 2-Methyl-6-isopentyl-5,7-dihydroxychromone
  • 2-(p-Hydroxyphenoxy)-6-methoxy-5,7-dihydroxychromone