CAS 2173568-57-3 appears in our catalog under these names: Fmoc-Trp(6-OMe)-OH 98%, (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(6-methoxy-1H-indol-3-yl)propanoic acid, 98%, 98%, N-Fmoc-6-Methoxy-L-Tryptophan, 98%. Offered by: Ambeed, Chemat, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 5g, 10g.