3-09-00-01753 (Beilstein Handbook Reference) 329-83-9 BENZOIC ACID, p-NITRO-, CYCLOPENTYLIDENEHYDRAZIDE BRN 3353138 Benzoic acid, 4-nitro-, cyclopentylidenehydrazide (9CI) NSC 404146 p-Nitrobenzoic acid cyclopentylidene hydrazide