CAS 5287-46-7 appears in our catalog under these names: (2R)-2-Amino-3-((3-methylbut-2-en-1-yl)sulfanyl)propanoic acid, Prenisteine 95%, (2R)-2-amino-3-[(3-methylbut-2-en-1-yl)sulfanyl]propanoic acid, 95%, 95%, Prenisteine, 99.79%, Prenisteine, 98%. Offered by: Biosynth, Ambeed, Chemat, MedChemExpress, Fluorochem. Available pack sizes: 50mg, 0,5g, 100mg, 250mg, 1g, 250 mg, 5 mg, 10 mg.