Some 1-{4-Chloro-6-[3-(6-methoxy - benzothiazol-2-ylazo)-2,6-dimethyl-quinolin-4-yloxy]- [1,3,5] triazin-2-yl}-(substituted phenyl)-urea 3a-h were synthesized and studied for their microbial activity. These compounds were prepared by the condensation of substituted phenylurea with [4-(4,6-Dichloro-[1,3,5]triazin-2-yloxy)-2,6-dimethyl-quinolin-3-yl]-(6- methoxy-benzothiazol-2-yl)-diazene [2] which is prepared by the reaction between 3-[(6- methoxy-benzothiazol-2-yl)-diazinyl]-2,6-dimethyl-4-hydroxyquinoline [1] and cyanuric chloride. 3-[(6-methoxy-benzothiazol-2-yl)-diazinyl]-2,6-dimethyl-4-hydroxyquinoline [1] prepared by coupling of 2,6-dimethyl-4-hydroxyquinoline and diazotised 2-amino-6-methoxy benzothiazole. All the compounds were characterized by elemental analysis and spectral studies.