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simetryn 25%WP 95%TC Weed control herbicides weedicide agricultural chemical agrochemical pesticide

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simetryn 25%WP 95%TC Weed control herbicides weedicide agricultural chemical agrochemical pesticide

simetryn 25%WP 95%TC  Weed control herbicides weedicide agricultural chemical agrochemical pesticide
simetryn 25%WP 95%TC  Weed control herbicides weedicide agricultural chemical agrochemical pesticide

Large Image :  simetryn 25%WP 95%TC Weed control herbicides weedicide agricultural chemical agrochemical pesticide

Product Details:
Place of Origin: China
Brand Name: EE
Certification: CCC
Model Number: 366
Payment & Shipping Terms:
Minimum Order Quantity: 3ton
Packaging Details: 100g/bag,200g/bag, 500g/bag, 1kg/bag, 25kg/bag
Delivery Time: 25-35day
Payment Terms: L/C, D/A, T/T, Western Union, MoneyGram
Supply Ability: 4ton/ Day
Detailed Product Description
CAS No.: 1014-70-6 Other Names: 2,4-Bis(ethylamino)-6-(methylthio)-1,3,5-triazine
MF: C8H15N5S EINECS No.: 213-801-7
State: Powder Purity: 25%WP
Application: Herbicide,Weedicide,Agriculture,Control Annual Weeds And Grasses,Agrochemical & Pesticide Classification: Herbicide
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                                                                                Simetryn

 

 

Simetryn is a triazine herbicide that is primarily used to control broad-leaved weeds and grass in paddy rice and other crops. 

 

It is absorbed through roots and foliage and inhibits photosynthesis. 

 

Like other triazine herbicides, simetryn is characterized by high persistence and toxicity.

 

Prometryn (belongs to the chemical class of sulfur-substituted triazine or thiomethyl herbicides or thio-S(symmetrical)-triazines.

Prometryn is commercially available from 1964 (in the United States first), 6 years after the first commercial use of first chloro-S-triazines (atrazin, simazin), 8 years after the first experimental use of atrazin, and 12 years after the discovery of herbicidal properties of S-triazines.

It is synthesized by successive N-alkylations of cyanuric acid with the addition of thiomethyl group by mercaptan.

Triazines, and concordantly prometryn, were the most applied herbicides throughout the world in the second half of the twentieth century for their presumably low toxicity and relatively low environmental persistency. Prometryn was among 350 most used food pesticides in United States (Environmental Protection Agency (EPA) List A). However, significant evidence was gathered that S-triazines are groundwater contaminants with diverse toxic properties (genotoxic, endocrine disrupting, and immunotoxic). This resulted in the restricted use of atrazine and chloro-S-triazines and finally led to their complete ban in many countries. It was believed that methylthio-S-triazines (prometryn) were less toxic but some countries also banned prometryn together with other triazine herbicides . In 2006, there were at least 11 big manufacturers registered in China, 7 in the USA, 2 in Taiwan and India, and at least 1 big manufacturer in Switzerland, Israel, Italy, and Canada. Even though banned in European countries, large areas of Asia, Africa, Australia and Pacific region, Canada, China, India, and United States are still treated with this herbicide. Large quantities are still being produced; for example, in 2010 one single manufacturer in China produced 20 000 tons of prometryn.

 

 

Product Name Simetryn
CAS No 1014-70-6
Appearance White powder
Specifications (COA) Assay: 95% min
Loss on drying: 0.5% max
Acidity(as H2SO4): 0.5% max
Acetone insoluble: 0.5% max
Formulations 95% TC, 25% WP, 13% EC
Target crops Paddy, corn, soybeans, wheat, peanuts, cotton
Prevention objects Gramineous weeds: Barnyard grass,Eleusine indica, Cogon, Wild oats, Bromus, Aegilops tauschii Cosson, Foxtail, Green bristlegrass herb, Ryegrass, Black nightshade, Crabgrass, Woodland forget-me- not, Orchardgrass, Bedstraw, etc.
Mode of action 1.Selective herbicide
2.Pre-emergence herbicide
3.Leaf treatment herbicide
Toxicity Acute oral LD50 for rats >750 mg/kg.
Acute percutaneous LD50 for rats >1600 mg/kg.

 

 

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