CAS 536-40-3 appears in our catalog under these names: 4–Chlorobenzohydrazide, 4-Chlorobenzhydrazide, 4-Chlorobenzhydrazide, 98% , 4-Chlorobenzohydrazide, >98.0%(GC)(T), 4-Chlorobenzhydrazide 98%. Offered by: GLPBio, Chemat, Thermo Scientific (Alfa Aesar), TCI, Biosynth. Available pack sizes: 100g, 25g, 5g, 50g, 250g, 10g, 500g, 1g.