cadralazine cadralazine cadralazine is an antihypertensive of the hydrazinophthalazine chemical class. cadralazineclinical dataahfs/drugs.cominternational drug namesatc codec02db04 (who) identifiers iupac name ethoxy-n'-carbohydrazide cas number64241-34-5 ypubchem cid2515chemspider2420 nunii8t96i3u713chemblchembl2106561 ncomptox dashboard (epa)dtxsid4048725 chemical and physical dataformulac12h21n5o3molar mass283.332 g·mol−13d model (jsmol)interactive image smiles o=c(occ)nnc1nnc(n(cc(o)c)cc)cc1 inchi inchi=1s/c12h21n5o3/c1-4-17(8-9(3)18)11-7-6-10(13-15-11)14-16-12(19)20-5-2/h6-7,9,18h,4-5,8h2,1-3h3,(h,13,14)(h,16,19) nkey:qltvvoatehfxlt-uhfffaoysa-n n ny (what is this?) (verify)