2H-1,4-BENZOTHIAZIN-3(4H)-ONE, 4-METHYL-6-(1-((2-PROPYNYLOXY)IMINO)ETHYL)- 4-Methyl-6-(1-((2-propynyloxy)imino)ethyl)-2H-1,4-benzothiazin-3(4H)-one 91119-75-4 BRN 4496107