Compounds containing in the structure a benzothiazole ringsystem (whether or not hydrogenated), not further fused
Di"benzothiazol2yl"disulphide; benzothiazol2thiol "mercaptobenzothiazole" and its salts
Heterocyclic compounds containing in the structure a benzothiazole ringsystem, whether or not hydrogenated, but not further fused (excl. di"benzothiazol2yl"disulphide; benzothiazole2thiol "mercaptobenzothiazole" and its salts, and inorganic or organic compounds of mercury)