CAS 83825-42-7 appears in our catalog under these names: Boc-l-3-thienylalanine dcha, 95%, Boc-l-3-(3-thienyl)-alanine, 95%, (S)-2-((Tert-Butoxycarbonyl)Amino)-3-(Thiophen-3-Yl)Propanoic Acid, 98%. Offered by: Combi-blocks, Chemat, Fluorochem. Available pack sizes: 250mg, 5g, 1g, 100mg.