CAS 5331-91-9 appears in our catalog under these names: 5–Chloro–2–mercaptobenzothiazole, 5-Chloro-2-mercaptobenzothiazole, 98% , 5-Chloro-2-mercaptobenzothiazole, >96.0%(T), 5-Chloro-2-mercaptobenzothiazole, 5-Chlorobenzo[d]thiazole-2(3H)-thione 95%. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), TCI, Biosynth, Ambeed. Available pack sizes: 25g, 5g, 50g, 100g, 10000g, 250g, 1g, 10g.