CAS 894622-67-4 appears in our catalog under these names: 1-[(4-Nitrobenzoyl)amino]-5-oxopyrrolidine-3-carboxylic acid, 95%, 1-(4-Nitrobenzamido)-5-oxopyrrolidine-3-carboxylic acid, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 1g, 5g.