CAS 43038-45-5 appears in our catalog under these names: 1–Naphthohydrazide, 1-Naphthoic hydrazide, 98+% , 1-Naphthohydrazide, >98.0%(GC)(T), alpha-Naphthoylhydrazine, 1-Naphthohydrazide 98%. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), TCI, Biosynth, Ambeed. Available pack sizes: 25g, 5g, 1g, 10g, 100g.