CAS 18627-60-6 appears in our catalog under these names: 2-(4-Nitro-1,3-dioxo-1,3-dihydro-2h-isoindol-2-yl)propanoic acid, 95%, 2-(4-Nitro-1,3-dioxoisoindolin-2-yl)propanoic acid, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 1g, 5g.