CAS 923283-54-9 appears in our catalog under these names: Methyl 4-amino-1-methyl-1h-pyrazole-5-carboxylate hydrochloride, 95%, Methyl 4-amino-1-methyl-1h-pyrazole-5-carboxylate, 98%, Methyl 4-amino-1-methyl-1H-pyrazole-5-carboxylate 98%, 4-Amino-1-methyl-1H-pyrazole-5-carboxylic acid methyl ester, 98%. Offered by: Combi-blocks, Ambeed, Fluorochem. Available pack sizes: 250mg, 5g, 1g, 10g, 25g, 100g.