2-Amino-3-hydroxy-N'-(2,3,4-trihydroxybenzylidene)propanehydrazide787504-88-5Benserazide EP Impurity C2-amino-3-hydroxy-N-[(2,3,4-trihydroxyphenyl)methylideneamino]propanamide[(2,3,4-Trihydroxyphenyl)methylene]hydrazide-serine HydrochlorideBenserazide impurity C CRSorb17099742-Amino-3-hydroxy-N'-[(2,3,4-trihydroxyphenyl)methylidene]propanehydrazideSCHEMBL18423220DTXSID201019549