CAS 54952-71-5 appears in our catalog under these names: 5-Methyl-3-phenyl-1H-pyrazole-4-carboxylic acid, 95%, 3-Methyl-5-phenyl-1H-pyrazole-4-carboxylic acid, 97%, 5-Methyl-3-phenyl-1h-pyrazole-4-carboxylic acid, 97%, 97%, 5-methyl-3-phenyl-1H-pyrazole-4-carboxylic acid, 97%. Offered by: Combi-blocks, AmBeed, Chemat, Fluorochem. Available pack sizes: 250mg, 5g, 1g, 10g, 100mg, 500mg.