CAS 155290-47-4 appears in our catalog under these names: 2-(2'-N-Boc-hydrazino)benzoic acid, 95%, 2-(2-(tert-Butoxycarbonyl)hydrazinyl)benzoic acid 95%, 2-(2'-N-Boc-hydrazino)benzoic acid, 95%, 95%, 2-(2'-N-BOC-HYDRAZINO)BENZOIC ACID, 98%. Offered by: Combi-blocks, Ambeed, Chemat, Fluorochem. Available pack sizes: 250mg, 5g, 1g, 100mg, 10g.