50562-99-7

Basic information

• Product Name: C₃₇H₃₀O₁₂S
• CAS NO: 50562-99-7
• Molecular Weight: 698.704
• Mol File: 50562-99-7.mol
• Article Data: 8

Chemical Properties

• CAS DataBase Reference: C₃₇H₃₀O₁₂S(CAS DataBase Reference)
• NIST Chemistry Reference: C₃₇H₃₀O₁₂S(50562-99-7)
• EPA Substance Registry System: C₃₇H₃₀O₁₂S(50562-99-7)

Safety Data

• Hazardous Substances Data: 50562-99-7(Hazardous Substances Data)

Upstream product

• 114569-30-1 aesculitannin F 
• 100-53-8 phenylmethanethiol 
• 114612-77-0 epicatechin-(2β→O→7,4β→8)-ent-catechin-(4β→8)-epicatechin 
• 139975-01-2 epicatechin-(4β,8;2β,7)-epicatechin-(4α,8)-ent-epicatechin 
• 139975-02-3 epicatechin-(4β->8,2βO->7)-epicatechin-(4β->8)-epicatechin 
• 114569-30-1 aesculitannin E 
• 114586-50-4 aesculitannin G 
• 88057-90-3 C₇₅H₆₀O₃₀ 
• 88038-15-7 C₆₀H₄₈O₂₄ 
• 97233-47-1 cinnamtannin D₂ 
• 114715-46-7 C₆₀H₄₈O₂₄ 
• 114637-80-8 C₆₀H₄₈O₂₄ 
• 97233-06-2 epicatechin-(2β->O->7, 4β->8)-epicatechin-(4β->8)-catechin 
• 88038-15-7 epicatechin-(4β->6)-epicatechin-(2β->O->7, 4β->8)-epicatechin-(4β->8)-epicatechin 

Downstream Products

• 100068-27-7 C₄₅H₃₅BrO₁₈ 
• 41743-41-3 procyanidin A2 
• 111466-29-6 (-)-epicatechin-(2β→O→7,4β→8)-(-)-catechin 
• 51079-25-5 (2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether 
• 154-23-4 catechin 

Relevant articles and documents

DIMERIC AND TRIMERIC PROANTHOCYANIDINS POSSESSING A DOUBLY LINKED STRUCTURE FROM PAVETTA OWARIENSIS

Pavetannin A-2, a new A-type proanthocyanidin, along with the trimers cinnamtannin B-1, pavetannin B-1, B-2, B-3, B-5 and B-6 have been isolated in their free phenolic form from the stem bark of Pavetta owariensis.Spectral data and partial acid-catalysed degradation established their structures as ent-epicatechin-(4α->8,2α->O->7)-catechin, epicatechin-(4β->8,2β->O->7)-epicatechin-(4α->8)-epicatechin, epicatechin-(4β->8,2β->O->7)-epicatechin-(4β->8)-ent-epicatechin, epicatechin-(4β->8,2β->O->7)-epicatechin-(4β->8)-epicatechin, epicatechin-(4β->6,2β->O->7)-epicatechin-(4β->8)-epicatechin, epicatechin-(4β->6,2β->O->7)-catechin-(4β->8)-epicatechin, epicatechin-(4β->8,2β->O->7)-epicatechin-(4α->8)-catechin, respectively. Key Word Index - Pavetta owariensis; Rubiaceae; stem bark; proanthocyanidins; doubly linked structures; dimer; trimer; thiolytic degradation.

Studies on the constituents of bark of Parameria laevigata Moldenke

One new trimeric proanthocyanidin, epicatechin-(2β→O→7,4β→6)-epicatechin- (2β→O→7, 4β→8)epicatechin (5) and two new tetrameric proanthocyanidins, epicatechin-(2β→O→7, 4β→8)-[epicatechin-(4β6)]epicatechin-(4β→8)- epicatechin, named as parameritannin A-1 (6), and epicatechin-(2β→O→5, 4β→6)[epicatechin-(2β→O→7, 4β→8)]-epicatechin-(4β→8)-epicatechin, named as parameritannin A-2 (7), have been isolated from the bark of Parameria laevigata Moldenke (Apocynaceae) along with the two known dimers, proanthocyanidin A-2 (1) and proanthocyanidin A-6 (2), and two dimers, cinnamtannin B-1 (3) and aesculitannin B (4). These structures were elucidated by spectral and chemical evidence.

Tannins and Related Compounds. LX. Isolation and Characterization of Proanthocyanidins with a Doubly-Linked Unit from Vaccinium vitis-idaea L.

New proanthocyanidin trimers (14 and 15) and tetramers (16 and 17) have been isolated from the whole body of Vaccinium vitis-idaea L. (Ericaceae).The structures of these proanthocyanidins were established by thiolytic degradation and by analyses of the proton and carbon-13 nuclear magnetic resonance spectra.In addition, the presence of (-)-epicatechin (1), (+)-catechin (2), (-)-epigallocatechin (3), (+)-gallocatechin (4), procyanidins B-1 (5), B-3 (6), A-1 (8) and A-2 (9), and cinnamtannins B1 (10), D1 (11), B2 (12) and D2 (13) in this plant was demonstrared.Keywords - Vaccinium vitis-idaea; Ericaceae; doubly-bonded proanthocyanidin; procyanidin; condensed tannin; flavan-3-ol; thiolytic degradation