L-Tryptophan 1) GMP, Kosher, ISO 2) CAS No.: 73-22-3 3) Assay: 98.5-101.0% 4) Quality Standard: ... ] C11H12N2O2 [Molecular structure] [Molecular weight] 204.2252 [CAS No.] 73-22-3 [Description] White crystals or crystalline powder [Quality Standard]ItemCP2010EP5AJI92USP24Assay ...