162255-91-6 2,4-Dihydro-2,3,4,7,9-pentamethylpyrazolo(4,3-c)pyrido(3,2-e)(1,2)thiazine 5,5-dioxide 2H-2,3,4,7,9-Pentamethyl-2,4-dihydropyrazolo(4,3-c)pyrido(3,2-e)-1,2-thiazine-5,5-dioxide Pyrazolo(4,3-c)pyrido(3,2-e)(1,2)thiazine, 2,4-dihydro-2,3,4,7,9-pentamethyl-, 5,5-dioxide