CAS 39161-84-7 appears in our catalog under these names: 4-Mercaptophenylacetic acid, 95-<97%, 4-Mercaptophenylacetic acid, ≥97-<99%, 4-Mercaptophenylacetic Acid, >95% (HPLC), 4-Mercaptophenylacetic acid, 97% , 2-(4-Mercaptophenyl)acetic Acid, >95.0%(HPLC)(T). Offered by: Hoffman Fine Chemicals, TRC, Thermo Scientific (Alfa Aesar), TCI, Biosynth. Available pack sizes: 25g, 50g, 100g, 200g, 300g, 400g, 100mg, 1g.