CAS 32999-55-6 appears in our catalog under these names: H-DL-Ala(2-oxoindolin-3-yl)-OH 98%, 2-Amino-3-(2-oxoindolin-3-yl)propanoic acid, 98%, 98%, Oxindolylalanine, 98.0%, 2-Amino-3-(2-oxoindolin-3-yl)propanoic acid, 98%. Offered by: Ambeed, Chemat, MedChemExpress, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 5g, 100 mg, 1 g, 250 mg, 500 mg.