Name | Acetochlor |
Synonyms | Acenit Topnotc Harness HARNESS MON-097 Top Hand TROPHY(R) Acetochlor ERUNITE(R) SACEMID(R) SURPASS(R) HARNESS PLUS(R) 2-Chloro-2'-methyl-6'-ethyl-N-ethoxymethyl 2-CHLORO-N-ETHOXYMETHYL-6'-ETHYLACET-O-TOLUIDIDE 2-Chloro-2'-methyl-6'-ethyl-N-ethoxymethyl-acetanilide 2'-Ethyl-6'-methyl-n-(ethoxymethyl)-2-chloro-acetylanilide 2-Chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)acetamide |
CAS | 34256-82-1 |
EINECS | 251-899-3 |
InChI | InChI=1/C14H20ClNO2/c1-4-12-8-6-7-11(3)14(12)16(10-18-5-2)13(17)9-15/h6-8H,4-5,9-10H2,1-3H3 |
Molecular Formula | C14H20ClNO2 |
Molar Mass | 269.77 |
Density | 1.1 |
Melting Point | <0°C |
Boling Point | bp0.4 torr 134° |
Flash Point | >68°C |
Water Solubility | 222.8mg/L(temperature not stated) |
Vapor Presure | 2.46E-06mmHg at 25°C |
Appearance | neat |
BRN | 2859702 |
pKa | 1.29±0.50(Predicted) |
Storage Condition | 0-6°C |
Refractive Index | nD20 1.5272 |
MDL | MFCD00143534 |
Physical and Chemical Properties | Density 1.1 melting point <0°C flash point> 68°C |
Use | A pre-emergence herbicide that can control annual grass weeds and some annual Broad-leaved weeds, suitable for use in corn, cotton, peanut and soybean fields |
Risk Codes | R20 - Harmful by inhalation R37/38 - Irritating to respiratory system and skin. R43 - May cause sensitization by skin contact R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S2 - Keep out of the reach of children. S36/37 - Wear suitable protective clothing and gloves. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
UN IDs | UN3082 9/PG 3 |
WGK Germany | 2 |
RTECS | AB5457000 |
Toxicity | LD50 orally in rats: 1160 mg/kg (Upchurch) |
2.6 monoethyl monochloroacetoaniline was obtained from the reaction of 2,6 monoethyl aniline with chloroacetic acid and phosphorus trichloride. Ethanol reacts with Polyoxymethylene in the presence of hydrochloric acid to produce chloromethyl ethyl ether. Acetochlor is then formed from the condensation of 2,6 monoethyl monochloroacetoaniline with chloromethyl ethyl ether.
amide selective pre-emergence herbicide, can be used for corn, cotton, soybean, peanut, rape, potato, sugarcane, sesame, sunflower, orchard and legume, Cruciferae, Solanaceae, asteraceae and Umbelliferae and other vegetable fields, control of annual grass weeds, a fertilizer can control the entire growth period of crops, no weed harm. Ineffective against perennial weeds.
rat oral LD50 1160mg/kg; Rainbow trout LC50 0.5mg/L(96H).
NIST chemical information | Information provided by: webbook.nist.gov (external link) |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
toxicity | acute oral LD50 in rats is 2148 mg/kg (1160 mg/kg) and acute percutaneous LD50 in rabbits is 794 mg/kg(4166 mg/kg,50% EC). The LC50 of rainbow trout is 0.5mg/L (96h). |
use | amide selective, pre-bud herbicides, can be used in corn, cotton, soybean, peanut, rape, potato, sugar cane, sesame, sunflower and leguminous, cruciferous, Solanaceae, Compositae, Umbelliferae and other vegetable fields and orchards to control annual gramineous weeds, and one application can control the whole growth period of crops without weed damage. Not effective for perennial weeds. this product is a selective dry field pre-bud herbicide, which has an effective period of more than 8 weeks in the soil. one application can control the whole growth period of crops without weed damage. It can be used in peanut, corn, soybean, cotton, rape, sesame, potato, sugar cane, sunflower, orchard and leguminous, cruciferous, Solanaceae, Compositae and Umbelliferae and other vegetable fields to control annual gramineous weeds. Not effective for perennial weeds. It is a pre-bud herbicide, which can control annual gramineous weeds and certain annual broadleaf weeds. It is suitable for weeding in corn, cotton, peanut and soybean fields. |
Production method | 2, 6-methylethylaniline reacts with chloroacetic acid and phosphorus trichloride to produce 2, 6-methylethyl-chloroacetoaniline; Ethanol reacts with polyoxymethylene in the presence of hydrochloric acid, and after etherification, chloromethyl ethyl ether is obtained; finally 2-methyl-6-ethylchloroacetoaniline and chloromethyl ethyl ether undergo condensation reaction, acetochlor is produced. The emulsifiable concentrate 50% the product is light brown yellow liquid; 43% emulsifiable concentrate is reddish brown liquid. Raw material consumption quota: 2-methyl -6-ethylaniline 600kg/t, chloroacetic acid 480kg/t, ethanol 250kg/t, polyoxymethylene 150kg/t, caustic soda 1100kg/t. 2, 6-methylethylheptaamine reacts with chloroacetic acid and phosphorus trichloride to produce 2, 6-methylethyl-2-chloroacetoanilide. Ethanol reacts with polyoxymethylene in the presence of hydrochloric acid to produce chloromethyl ethyl ether. 2, 6-Methylethyl-2-chloroacetoaniline is condensed with chloromethyl ether to produce acetochlor. |
category | pesticide |
toxicity classification | poisoning |
acute toxicity | oral-rat LD50: 763 mg/kg |
flammability hazard characteristics | Combustion produces toxic nitrogen oxides and chloride gases |
storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from food raw materials storage and transportation |
fire extinguishing agent | dry powder, foam, sand |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |