3895 Fluazifop-butyl Fluazifop-butyl is an aryloxyphenoxypropionic herbicide used for postemergence control of annual and perennial grass weeds. This substance is a derivative of fluazifop. Fluazifop-butyl is a different compound than either fluazifop or fluazifop-p-butyl. Both the chemical structures and the toxicities of these compounds are different. Fluazifop-p-butyl formulations can contain some fluazifop-butyl. 69806-50-4 50897 C19H20F3NO4 White powder. No indication of carcinogenicity to humans (not listed by IARC). This is a man-made compound that is used as a pesticide. 2013-04-25T07:56:51Z 2014-12-24T20:26:33Z C11029 true CCCCOC(=O)C(C)OC1=CC=C(OC2=NC=C(C=C2)C(F)(F)F)C=C1 C19H20F3NO4 InChI=1S/C19H20F3NO4/c1-3-4-11-25-18(24)13(2)26-15-6-8-16(9-7-15)27-17-10-5-14(12-23-17)19(20,21)22/h5-10,12-13H,3-4,11H2,1-2H3 InChIKey=VAIZTNZGPYBOGF-UHFFFAOYSA-N 383.3616 383.134442748 Exogenous Solid CHEMBL449397 46142