549-84-8 Amsonin Amsonine EINECS 208-977-7 Methyl (16alpha,17beta)-17-hydroxyyohimban-16-carboxylate NSC 93133 Yohimban-16-alpha-carboxylic acid, 17-beta-hydroxy-, methyl ester Yohimban-16-carboxylic acid, 17-hydroxy-, methyl ester, (16-alpha,17-beta)- (9CI) Yohimban-16-carboxylic acid, 17-hydroxy-, methyl ester, (16alpha,17beta)- (9CI) Yohimban-16alpha-carboxylic acid, 17beta-hydroxy-, methyl ester (8CI) beta-Yohimbin beta-Yohimbine