CAS 21487-49-0 appears in our catalog under these names: 3-(4-Nitrophenyl)-1-phenyl-1h-pyrazole-4-carbaldehyde, 95%, 3-(4-Nitrophenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde. Offered by: Combi-blocks, AmBeed, Biosynth. Available pack sizes: 100mg, 1g, 250mg, 5g, 10g, 2,5g.