Cas 131065-09-3,(2S,3R:8S,9S,10R)-3,5,9-Trihydroxy-2,10-bis-(3,4-dihydroxyphenyl)-8-(2,4,6-trihydroxyphenyl)-2,3-trans-8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene

131065-09-3

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Basic information

Product Name: (2S,3R:8S,9S,10R)-3,5,9-Trihydroxy-2,10-bis-(3,4-dihydroxyphenyl)-8-(2,4,6-trihydroxyphenyl)-2,3-trans-8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene
Synonyms:
CAS NO:131065-09-3
Molecular Formula:
Molecular Weight: 578.529
EINECS: N/A
Product Categories: N/A
Mol File: 131065-09-3.mol
Article Data: 1

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: (2S,3R:8S,9S,10R)-3,5,9-Trihydroxy-2,10-bis-(3,4-dihydroxyphenyl)-8-(2,4,6-trihydroxyphenyl)-2,3-trans-8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene(CAS DataBase Reference)
NIST Chemistry Reference: (2S,3R:8S,9S,10R)-3,5,9-Trihydroxy-2,10-bis-(3,4-dihydroxyphenyl)-8-(2,4,6-trihydroxyphenyl)-2,3-trans-8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene(131065-09-3)
EPA Substance Registry System: (2S,3R:8S,9S,10R)-3,5,9-Trihydroxy-2,10-bis-(3,4-dihydroxyphenyl)-8-(2,4,6-trihydroxyphenyl)-2,3-trans-8,9-cis-9,10-trans-3,4,9,10-tetrahydro-2H,8H-pyrano<2,3-h>chromene(131065-09-3)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 131065-09-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 131065-09-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,0,6 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131065-09:
(8*1)+(7*3)+(6*1)+(5*0)+(4*6)+(3*5)+(2*0)+(1*9)=83
83 % 10 = 3
So 131065-09-3 is a valid CAS Registry Number.

131065-09-3Upstream product

29106-49-8 procyanidin B₂

131065-09-3Downstream Products

131065-09-3Relevant articles and documents

Oligomeric flavanoids. Part W. Base-catalyzed pyran rearrangements of procyanidin B 2, and evidence for the oxidative transformation of B- to A-type procyanidins

Burger, Johann F. W.,Kolodziej, Herbert,Hemingway, Richard W.,Steynberg, Jan P.,Young, Desmond A.,Ferreira, Daneel

, p. 5733 - 5740 (1990)

Procyanidin B-2 3 is subject to facile C-ring isomerizations in 0.1M NaHCO3 solution to form a novel series of 3,4,9, 10-tetrahydro-2H, 8-pyrano[2,3-h]chromenes 7, 9, and 10. The low percentage conversion of B- to A-type procyanidin 2 is rationalized in terms of an initial oxidative removal of hydride ion at C-2 (C-ring).

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