CAS 409333-54-6 appears in our catalog under these names: 2-tert-Butoxycarbonylamino-4,4,4-trifluoro-3-methyl-butyric acid, 96%, 2-((tert-Butoxycarbonyl)amino)-4,4,4-trifluoro-3-methylbutanoic acid, 98%, 2-((tert-Butoxycarbonyl)amino)-4,4,4-trifluoro-3-methylbutanoic acid, 97%, 97%, BOC-D,L-4,4,4-TRIFLUOROVALINE, 95%. Offered by: Combi-blocks, AmBeed, Chemat, Fluorochem. Available pack sizes: 100mg, 1g, 250mg.