CAS 537-47-3 appears in our catalog under these names: 4–Phenylsemicarbazide, 4-Phenylsemicarbazide, >98.0%(T), 4-Phenylsemicarbazide 98%, 4-Phenylsemicarbazide, 98%, 98%, N-Phenylhydrazinecarboxamide, 97%. Offered by: GLPBio, TCI, Ambeed, Chemat, Fluorochem. Available pack sizes: 25g, 5g, 1g, 10g, 100g.