Piceatannol (trans-3, 4,3 ', 5'-tetrahydroxystilbene) is a polyphenol that has been discovered in grapes, red wine and rhubarb (Rheum undulatum).
It has important properties:

• anticancer
• inflammatory
• antimicrobial

Recent studies have found its ability to suppress a broad spectrum of tumor cells (1) (2).

Molecular Formula: C₁₄H₁₂O₄

Molecular Weight: 244.246 g/mol

CAS: 4339-71-3  10083-24-6

EC Number: 600-132-4

UNII: 6KS3LS0D4F

PubChem Substance ID: 24278620

MDL number: MFCD00221715

Synonyms:

• 3-Hydroxyresveratol
• (E)-4-[2-(3,5Dihydroxyphenyl)ethenyl]1,2-benzenediol
• 3,3′,4,5′-Stilbenetetrol
• 3,3′,4,5′-Tetrahydroxy-trans-stilbene
• 3,3',4,5'-Tetrahydroxystilbene
• Astringenin
• astringinin
• piceatanol
• 3,3',4,5'-Stilbenetetrol
• 4-[(E)-2-(3,5-dihydroxyphenyl)vinyl]benzene-1,2-diol
• (E)-4-[2-(3,5-Dihydroxyphenyl)ethenyl]1,2-benzenediol
• 4-[(E)-2-(3,5-dihydroxyphenyl)vinyl]benzene-1,2-diol(Piceatannol)
• 4-[(1E)-2-(3,5-dihydroxyphenyl)ethenyl]benzene-1,2-diol
• 4-[2-(3,5-dihydroxyphenyl)-(E)-1-ethenyl]-1,2-benzenediol(Piceatannol)
• 4-[(1E)-2-(3,5-dihydroxyphenyl)vinyl]benzene-1,2-diol
• 1, 4-[2-(3,5-dihydroxyphenyl)ethenyl]-, (E)-
• 5-[(E)-2-(3,4-Dihydroxyphenyl)vinyl]benzene-1,3-diol
• 3,4,3'',5''-tetrahydroxy-trans-stilbene
• 4-[(E)-2-[3,5-bis(oxidanyl)phenyl]ethenyl]benzene-1,2-diol
• trans-3,3'',4,5''-tetrahydroxystilbene
• 4-[2-(3,5-dihydroxyphenyl)-(E)-1-ethenyl]-1,2-benzenediol

References_________________________________

(1) Piotrowska H, Kucinska M, Murias M.Biological activity of piceatannol: leaving the shadow of resveratrol.
Department of Toxicology, Poznan University of Medical Sciences, ul. Dojazd 30, 60-631 Poznan, Poland.
http://www.ncbi.nlm.nih.gov/pubmed/22108298

(2) Yuichiro Kita, Yutaka Miura and Kazumi Yagasaki.Antiproliferative and Anti-Invasive Effect of Piceatannol,
a Polyphenol Present in Grapes andWine, against Hepatoma
AH109A Cells. Hindawi Publishing Corporation
Journal of Biomedicine and Biotechnology
Volume 2012, Article ID 672416, 7 pages
doi:10.1155/2012/672416

http://www.hindawi.com/journals/bmri/2012/672416/