CAS 594-42-3 appears in our catalog under these names: Perchloromethyl mercaptan, 97%, Trichloromethanesulfenyl chloride, Trichloromethanesulfenyl chloride, Concentration: 100 µg/ml Solvent: Acetonitrile. Offered by: Thermo Scientific (Acros), HPC Standards. Available pack sizes: 5g, 25g, 1x250mg, 1x1ml.