KAINIC ACID 2-CARBOXY-3-CARBOXYMETHYL-4-ISOPROPENYLPYRROLIDINE

(-)-O-DESMETHYLTRAMADOL,HYDROCHLORIDE

(+)-Dibenzoyl-D-tartaric acid monohydrate

1,4a,5,7a-Tetrahydro-1-hydroxy-7-(hydroxymethyl)-cyclopenta(c)pyran-4-carboxylic acid methyl ester