(2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol

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Names

[ CAS No. ]:
20728-73-8

[ Name ]:
(2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-5,7-bis(phenylmethoxy)-2H-1-benzopyran-3-ol

[Synonym ]:
EINECS 243-993-8
5,7,3',4'-Tetra-O-benzylcatechin

Chemical & Physical Properties

[ Density]:
1.234g/cm3

[ Boiling Point ]:
813.8ºC at 760mmHg

[ Molecular Formula ]:
C43H38O6

[ Molecular Weight ]:
650.75800

[ Flash Point ]:
445.9ºC

[ Exact Mass ]:
650.26700

[ PSA ]:
66.38000

[ LogP ]:
9.03970

[ Vapour Pressure ]:
0mmHg at 25°C

[ Index of Refraction ]:
1.643

Safety Information

[ HS Code ]:
2932999099

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Benzyl chloride
  • Catechin
  • (+)-(1S,2S)-3-[2,4-bis(benzyloxy)-6-hydroxyphenyl]-1-[3,4-bis(benzyloxy)phenyl]propane-1,2-diol
  • Benzyl bromide
  • (2R)-2-[3,4-bis(phenylmethoxy)phenyl]-5,7-bis(phenylmethoxy)-4H-chromen-3-one
  • Catechin pentaacetate
  • 3,4-dibenzyloxybenzaldehyde
  • ethyl 3-[3,4-bis(phenylmethoxy)phenyl]prop-2-enoate
  • (E)-3-(3,4-bis(benzyloxy)phenyl)prop-2-en-1-ol

DownStream

  • ProcyanidinB2
  • Catechin
  • (-)-Epicatechin gallate
  • Procyanidin B1
  • Astilbin
  • Procyanidin B3
  • Procyanidol B4

Customs

[ HS Code ]: 2932999099

[ Summary ]:
2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%