CAS 336854-66-1 appears in our catalog under these names: L-Alanine, 3-[[(1,1-dimethylethoxy)carbonyl]amino]-n-[(9h-fluoren-9-ylmethoxy)carbonyl]-, methyl ester, 98%, L-Alanine, 3-(((1,1-dimethylethoxy)carbonyl)amino)-n-((9h-fluoren-9-ylmethoxy)carbonyl)-, methyl ester, 98%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 5g, 1g.