240423-33-0

Basic information

• Product Name: C₃₆H₃₆O₁₂
• CAS NO: 240423-33-0
• Molecular Weight: 660.675
• Mol File: 240423-33-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₃₆H₃₆O₁₂(CAS DataBase Reference)
• NIST Chemistry Reference: C₃₆H₃₆O₁₂(240423-33-0)
• EPA Substance Registry System: C₃₆H₃₆O₁₂(240423-33-0)

Safety Data

• Hazardous Substances Data: 240423-33-0(Hazardous Substances Data)

Upstream product

• 186581-53-3 diazomethane 

Downstream Products

• 240487-88-1 C₃₇H₃₈O₁₂ 
• 104263-86-7 ent-catechin 3',4',5,7-tetra-O-methyl ether 
• 51079-25-5 (2R,3S)-(+)-catechin 3',4',5,7-tetramethyl ether 
• 29127-26-2 5,3',4'-tri-O-methyl-(+)-catechin 

Relevant articles and documents

A-type proanthocyanidins from peanut skins

Six A-type proanthocyanidins were isolated from the water-soluble fraction of peanut skins. On the basis of spectral data, reductive cleavage with sodium cyanoborohydride, and chiral HPLC analysis, three new compounds, epicatechin-(2β → O → 7, 4β → 6)-catechin, epicatechin-(2β → O → 7, 4β → 6)-ent-catechin and epicatechin-(2β → O → 7, 4β → 6)-ent- epicatechin were unambiguously identified, together with the three known compounds, proanthocyanidin A-1, proanthocyanidin A-2 and epicatechin-(2β → O → 7, 4β → 8)-ent-epicatechin. 13C NMR chemical shift rules to distinguish between [2 → O → 7, 4 → 8] and [2 → O → 7,4 → 6] double- linked heptamethyl ethers of A-type proanthocyanidins are proposed. Bioassay experiments showed that these six compounds possess substantial activity against hyaluronidase.