CAS: 304-20-1 Molecular Formula: C8H9ClN4 Molecular Weight (g/mol): 196.638 MDL Number: MFCD00135998 InChI Key: ZUXNZUWOTSUBMN-UHFFFAOYSA-N Synonym: hydralazine hydrochloride,1-hydrazinophthalazine hydrochloride,1-hydrazinylphthalazine hydrochloride,apresoline,aiselazine,hydralazine hcl,hydralazine chloride,hyperazin,hyperex,lopress PubChem CID: 9351 ChEBI: CHEBI:31672 IUPAC Name: phthalazin-1-ylhydrazine;hydrochloride SMILES: C1=CC=C2C(=C1)C=NN=C2NN.Cl