CAS 67850-42-4 appears in our catalog under these names: N–((4–MEthylphenyl)sulfonyl)–l–tryptophan, N-[(4-Methylphenyl)sulfonyl]-l-tryptophan, 95%, N-[(4-MEthylphenyl)sulfonyl]-l-tryptophan, 97%, 97%, Tosyl-L-tryptophan, 98%. Offered by: GLPBio, Combi-blocks, Chemat, AmBeed. Available pack sizes: 1g, 5g, 25g, 10g, 100g, 250mg.