CAS 7716-66-7 appears in our catalog under these names: Lurasidone Impurity 5, Lurasidone Impurity 55, 3-Chloro-1,2-benzisothiazole, 3–Chloro–1,2–benzisothiazole, 3-Chloro-1,2-benzisothiazole, 97+% . Offered by: Chemat Brand, TRC, GLPBio, Thermo Scientific (Alfa Aesar), TCI. Available pack sizes: on request, 25g, 500g, 5g, 1kg, 0,5kg, 10g, 100g.