Chlorsulfuron is a super-efficient sulfonylurea herbicide that used to control broadleaf weeds and grass weeds in cereal crop fields, such as goosefoot, polygonum, amaranth, cleaver, piemarker, field bindweed, cirsium arvense, black bindweed, german camomile, setaria viridis, ryegrass, bluegrass, allium macrostemon bunge and so on. This product is a standard for pesticide residue analysis, it is for research use only. Do not administer it to human.