3930 Mesosulfuron-methyl Metsulfuron-methyl is a residual sulfonylurea herbicide that kills broadleaf weeds and some annual grasses. It is a systemic compound with foliar and soil activity, that inhibits cell division in shoots and roots. It has very low toxicity to mammals, birds, fish, and insects, but is a moderate eye irritant. 208465-21-8 11409499 C17H21N5O9S2 White powder. No indication of carcinogenicity to humans (not listed by IARC). This is a man-made compound that is used as a pesticide. 2013-04-25T07:56:52Z 2014-12-24T20:26:33Z true COC(=O)C1=C(C=C(CNS(C)(=O)=O)C=C1)S(=O)(=O)NC(=O)NC1=NC(OC)=CC(OC)=N1 C17H21N5O9S2 InChI=1S/C17H21N5O9S2/c1-29-13-8-14(30-2)20-16(19-13)21-17(24)22-33(27,28)12-7-10(9-18-32(4,25)26)5-6-11(12)15(23)31-3/h5-8,18H,9H2,1-4H3,(H2,19,20,21,22,24) InChIKey=NIFKBBMCXCMCAO-UHFFFAOYSA-N 503.507 503.078068675 Exogenous Solid CHEMBL1883630 9584394