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Chemistry notes

Structural comparisons, biosynthetic context, and quantified pharmacological data for resveratrol oligomers and related stilbenoid standards. Each note ties compound identity to specific assays, targets, and peer-reviewed citations.

Stilbenoid Chemistry6 min

Stilbenoid Oligomers: Documented Pharmacological Activities

Quantified pharmacological data for resveratrol oligomers including epsilon-viniferin, delta-viniferin, alpha-viniferin, vitisin A, and vitisin B. Antioxidant, anti-inflammatory, antimicrobial, and antiviral assay results.

Neuraminidase IC50 3.76 µMMRSA MIC 100 µg/mL
stilbenoid oligomersresveratrol oligomersviniferin pharmacologyepsilon-viniferin DPPH IC50
Stilbenoid Chemistry5 min

Viniferin Forms Compared: A Structural Guide to Resveratrol Oligomers

Structural comparison of five resveratrol oligomers from dimer to tetramer. Coupling modes, CAS numbers, stereochemistry, and the pyranoanthocyanin naming collision.

5 compounds8–10′ vs 3–8′ coupling
resveratrol oligomersviniferin formsepsilon-viniferindelta-viniferin
Stilbenoid Chemistry5 min

What Is epsilon-Viniferin?

epsilon-Viniferin (CAS 62218-08-0) is a resveratrol dimer and phytoalexin first isolated from grapevine in 1977. Structure, biosynthesis, natural occurrence, and analytical sourcing notes.

DPPH IC50 ~80 µMFRAP IC50 ~28.8 µM
epsilon-viniferinCAS 62218-08-0resveratrol dimerstilbenoid oligomer