135489-07-5 4-Chloro-8-(methylthio)isothiazolo(4',5':4,5)thieno(3,2-d)-1,2,3-triazine BRN 4260072 Isothiazolo(4',5':4,5)thieno(3,2-d)-1,2,3-triazine, 4-chloro-8-(methylthio)-