Synonyms(2R,2′R,3R,3′R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-3,3′,4,4′-tetrahydro[4,8′-bi-2H-1-benzopyran]-3,3′,5,5′,7,7′-hexol Close (2R,2′R,3R,3′R,4R)-2,2′-Bis(3,4-dihydroxyphenyl)-3,3′,4,4′-tetrahydro[4,8′-bi-2H-1-benzopyran]-3,3′,5,5′,7,7′-hexol Related products Procyanidin A2 M.F. M.W. 576.51 CAT# AR-P29547 CAS# 41743-41-3 Procyanidin B2 M.F. M.W. - CAT# AR-P29583 CAS# 29106-49-8 Procyanidin M.F. M.W. 594.52 CAT# AR-P29890 CAS# 4852-22-6