CAS 55666-41-6 appears in our catalog under these names: 2-Nitro-benzoic acid tert-butyl ester, 98%, tert-Butyl 2-nitrobenzoate, 96%, 2-Nitro-benzoic acid tert-butyl ester, 95%, 95%. Offered by: Combi-blocks, AmBeed, Chemat. Available pack sizes: 1g, 25g, 100g, 5g, 100mg, 250mg, 10g.