42556-50-3 (18α,19α,20β)-3β-Hydroxyursan-16-one (18α,19α,20β)-3β-Hydroxyursan-16-one Catalog No.: 1211853 Name: (18α,19α,20β)-3β-Hydroxyursan-16-one CAS: 42556-50-3 Inquire about this product →