714383 BTH benzothiadiazole 191 53247 BT benzothiadiazole 173 713248 BTA benzotriazole 125 715814 BTZ benzothiazole 43 715808 BTz benzotriazole 14 55069 BZ benzothiazole 9 718978 BZT benzothiazole 8 718799 BZO benzothiazole 2 2439906 BNTZ benzothiazole 1 3979953 BzT-OH benzothiazole 1 2458635 bztz benzothiazole 1