Name | Pretilachlor |
Synonyms | RIFIT SOFIT SOLNET 51218-49-6 Pretilchlor Pretilachlor PRETILACHLOR N-Propoxyethyl-N-chloroacetyl-2,6-diethylaniline 2,6-Diethyl-N-(2'-n-propoxyethyl)chloroacetanilide 2-CHLORO-2',6'-DIETHYL-N-(2-PROPOXYETHYL)ACETANILIDE 2-Chlor-N-(2,6-diethylphenyl)-N-(2-propoxyethyl)acetamid 2-Chloro-N-(2,6-diethylphenyl)-N-(2-propoxyethyl)acetamide 2-Chloro-N-(2,6-diéthylphényl)-N-(2-propoxyéthyl)acétamide 2-chloro-n-(2,6-diethylphenyl)-n-(2-propoxyethyl)-acetamid |
CAS | 51218-49-6 |
InChI | InChI=1/C17H26ClNO2/c1-4-11-21-12-10-19(16(20)13-18)17-14(5-2)8-7-9-15(17)6-3/h7-9H,4-6,10-13H2,1-3H3 |
Molecular Formula | C17H26ClNO2 |
Molar Mass | 311.85 |
Density | 1.0521 (rough estimate) |
Melting Point | 25°C |
Boling Point | bp0.001 135° |
Flash Point | 221.1°C |
Water Solubility | Insoluble in water |
Vapor Presure | 5.2E-08mmHg at 25°C |
Appearance | neat |
Specific Gravity | 1.076 (20℃) |
Color | Light yellow to Brown |
Merck | 14,7740 |
BRN | 2754162 |
pKa | 1.41±0.50(Predicted) |
Storage Condition | Inert atmosphere,2-8°C |
Refractive Index | nD20 1.5204 |
Physical and Chemical Properties | The pure product is a colorless liquid. B. p.135 °c/0.1, relative density 1.076 (20 °c), vapor pressure 0.133 x 10-3Pa. Soluble in most organic solvents, 20 degrees in water solubility of 50mg/L, partition coefficient (octanol/water) 12020. Stable After 2 years storage at room temperature. 20 C hydrolysis half-life 200d (pH = 1~9), 14d (pH = 13), the half-life of 20 ~ 50d in soil. |
Use | It can be used to control weeds in paddy fields, such as Cyperus papyrifera, beef felt, duck tongue grass and node vegetables. |
Risk Codes | R38 - Irritating to the skin R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | 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 | UN 3082 9/PG 3 |
WGK Germany | 2 |
RTECS | AB5427000 |
HS Code | 29242990 |
Hazard Class | 9 |
Packing Group | III |
Toxicity | LD50 in rats (mg/kg): 6099 orally; >3100 dermally (Rufener, Quadranti); LC50 in rainbow trout, carp, catfish: 3.0, 3.0, 2.6 ppm (Vogel, Aebi) |
Raw Materials | 2,6-Diethylaniline Chloroacetyl chloride |
The Pure product was a colorless liquid. Relative density (20 C) 1. 076. The solubility in water at 20 C is 530 X lO-6, which is soluble in most organic solvents.
obtained by reacting 2,6-= ethylphenylaminoethyl propyl ether with Chloroacetyl Chloride. Alternatively, it is prepared by reacting 2,6-ethylphenyl aminoethanol with Chloroacetyl Chloride and then with bromopropane.
selective pre-emergence herbicides, inhibitors of cell division. It is used for soil treatment, and can be used to control rice fields such as humulus scandens, atypical Cyperus, beef felt, duck tongue grass, and Alisma orientalis. Single application of wet inserted rice selectivity is poor, when used with the solution of the grass, the direct insertion of rice has excellent selectivity. Weeds through the hypocotyl and coleoptile absorption of chemicals, interference with protein synthesis, photosynthesis and respiration of weeds also have an indirect impact. It can be used to control weeds in paddy fields, such as humulus scandens, duck leaves grass, atypical Cyperus papyrifera, motherwort, cow felt, and grass, and has poor control effect on perennial weeds.
The oral LD50 of the original drug to rats was 6099mg/kg, and the percutaneous LD50 was> 3100mg/kg. The non-effective dose for the half year feeding trial in dogs was 7.5 rng/kg per day. No carcinogenic, teratogenic and mutagenic effects were found in animal experiments. Rainbow trout, carp, catfish LCs50 was 3.O× 10 -6, 3.O× 10 -6, 2.6 × lo-5. There is a certain stimulation of the skin, a slight stimulation of the eyes, toxic to bees.