CAS 7662-51-3 appears in our catalog under these names: (S)-2-Amino-3-(4-hydroxyphenyl)propanehydrazide, 98%, L-Tyrosine hydrazide, 98%, L–Tyrosine Hydrazide, (S)-2-Amino-3-(4-hydroxyphenyl)propanehydrazide, 98%, 98%, L-Tyrosine Hydrazide, 99.55%. Offered by: Fluorochem, Combi-blocks, GLPBio, Chemat, MedChemExpress. Available pack sizes: 5g, 25g, 1g, 250mg, 100g, 5 g, 25 g.