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