Synonyms: 3b,20a-Yohimban-16b-carboxylic acid, 18b-hydroxy-11,17a-dimethoxy-, methyl ester,[(p-methoxyphenyl)thio]acetate (ester) (8CI); Reserpic acid, methyl ester,[(p-methoxyphenyl)thio]acetate (7CI); Benz[g]indolo[2,3-a]quinolizine,yohimban-16-carboxylic acid deriv.; Methoxyphenothioserpine