Metamifop Herbicide (CAS# 256412-89-2) Now Available

Chem Service, Inc. (USA)  is now offering the herbicide Metamifop (CAS# 256412-89-2, or Chem Service part number N-13084-25MG). In addition to providing top-of-the-line herbicide and pesticide reference standards, Chem Service has 50 years of experience, knowledgeable chemistry experts and a proven track record of quality, high purity chemicals.

Metamifop is an acetyl-Coenzyme A carboxylase inhibitor that belongs to the group of aryloxyphenoxy propionates. It induces chlorosis selectively in weeds, and insufficient chlorophyll production makes it difficult for the plant pests to thrive.

Previously, research published in the Pakistan Journal of Weed Science Research demonstrated that Metamifop is excellent for weed control in direct seeded rice farming. Unlike transplant rice farming, direct seeded rice germinates alongside plant pests, increasing the amount of competition for resources needed to grow. This underscores the importance of weed control, and in an experiment conducted at Tamil Nadu Agricultural University, Metamifop was shown to be superior than standard Cyhalofop butyl in the control of weed species, such as Echinochloa colona, Echinochloa crus-gulli (L.), Panicum repens, Cyperus rotundus and Heteranthea limosa.

In theory, manual weeding is best, but when it comes to direct seeded rice, labour costs and weed regeneration make manual methods unpractical. Meanwhile, the Food and Agriculture Organisation of the United Nations projects global rice production for 2014-2015 to be 496.4 million tonnes, which is down 0.4 percent from the 2013-2014 projection. Erratic weather conditions are partly to blame for the challenges to rice farmers, and the minimisation of any pests, including weeds, will become pivotal.

So far, there is no data that marks Metamifop as a carcinogen, mutagen, endocrine disrupter, neurotoxicant, respiratory tract irritant or acetyl cholinesterase inhibitor in humans. However, it has induced tumors in animal studies published in the journal Regulatory Toxicology and Pharmacology. It is also a possible eye irritant and may cause skin sensitisation in humans.

Metamifop has the chemical formula C23H18ClFN2O4. Its International Chemical Identifier is InChI=1/C23H18ClFN2O4/c1-14(22(28)27(2)20-6-4-3-5-18(20)25)29-16-8-10-17(11-9-16)30-23-26-19-12-7-15(24)13-21(19)31-23/h3-14H,1-2H3/t14-/m1/s1.