4553 Dithiopyr Dithiopyr is a chemical used as a pre-emergent herbicide used to prevent crabgrass seeds from sprouting in the spring. Dithiopyr may alter microtubule polymerization and stability by interacting with microtubule associated proteins and/or microtubule organizing centers rather than interaction directly with tubulin. 97886-45-8 91757 C15H16F5NO2S2 White powder. No indication of carcinogenicity to humans (not listed by IARC). This is a man-made compound that is used as a pesticide. 2014-08-29T06:51:42Z 2014-12-24T20:26:51Z C18826 true CSC(=O)C1=C(CC(C)C)C(C(=O)SC)=C(N=C1C(F)F)C(F)(F)F C15H16F5NO2S2 InChI=1S/C15H16F5NO2S2/c1-6(2)5-7-8(13(22)24-3)10(12(16)17)21-11(15(18,19)20)9(7)14(23)25-4/h6,12H,5H2,1-4H3 InChIKey=YUBJPYNSGLJZPQ-UHFFFAOYSA-N 401.415 401.054261166 Exogenous Solid CHEMBL1902931 82855