ChemicalBook CAS DataBase List 34256-82-1

34256-82-1

Name	Acetochlor
CAS	34256-82-1
EINECS(EC#)	251-899-3
Molecular Formula	C14H20ClNO2
MDL Number	MFCD00143534
Molecular Weight	269.77
MOL File	34256-82-1.mol

Synonyms

2-CHLORO-N-ETHOXYMETHYL-6'-ETHYLACET-O-TOLUIDIDE ACENITE(R) ACETOCHLOR ERUNITE(R) HARNESS HARNESS PLUS(R) SACEMID(R) SURPASS(R) TROPHY(R) 2’-Ethyl-6’-methyl-n-(ethoxymethyl)-2-chloro-acetylanilide 2-Chloro-2’-methyl-6’-ethyl-N-ethoxymethyl 2-chloro-n-(ethoxymethyl)-6’-ethyl-o-acetotoluidid 2-chloro-n-(ethoxymethyl)-6’-ethyl-o-acetotoluidide 2-chloro-n-(ethoxymethyl)-n-(2-ethyl-6-methylphenyl)-acetamid Acetamide, 2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)- azetochlor erunit mg02 nevirex ACETOCHLOR, 100MG, NEAT

Chemical Properties

Melting point	<0°C
Boiling point	bp0.4 torr 134°
density	1.1
refractive index	nD20 1.5272
Fp	>68°C
storage temp.	0-6°C
solubility	Chloroform: Slightly Soluble,DMSO: Slightly Soluble,
form	neat
pka	1.29±0.50(Predicted)
Water Solubility	222.8mg/L(temperature not stated)
BRN	2859702
Henry's Law Constant	3.7×10⁴ mol/(m³Pa) at 25℃, HSDB (2015)
Major Application	agriculture environmental
InChI	InChI=1S/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
InChIKey	VTNQPKFIQCLBDU-UHFFFAOYSA-N
SMILES	C(N(COCC)C1=C(C)C=CC=C1CC)(=O)CCl
LogP	3.030
CAS DataBase Reference	34256-82-1(CAS DataBase Reference)
NIST Chemistry Reference	Acetamide, 2-chloro-n-(ethoxymethyl)-n-(2-ethyl-6-methylphenyl)-(34256-82-1)
EPA Substance Registry System	34256-82-1(EPA Substance)

Safety Data

Symbol(GHS)	GHS07,GHS08,GHS09
Signal word	Warning
Hazard statements	H315-H317-H332-H335-H351-H361f-H373-H410
Precautionary statements	P202-P273-P280-P302+P352-P304+P340+P312-P308+P313
Hazard Codes	Xn;N,N,Xn
Risk Statements	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 . less more
Safety Statements	S2:Keep out of the reach of children . S36/37:Wear suitable protective clothing and gloves . S60:This material and/or its container must be disposed of as hazardous waste . S61:Avoid release to the environment. Refer to special instructions safety data sheet . less more
RIDADR	UN3082 9/PG 3
WGK Germany	2
RTECS	AB5457000
REACH Registrations	Inactive
Storage Class	10 - Combustible liquids
Hazard Classifications	Acute Tox. 4 Inhalation Aquatic Acute 1 Aquatic Chronic 1 Carc. 2 Repr. 2 Skin Irrit. 2 Skin Sens. 1 STOT RE 2 STOT SE 3
Hazardous Substances Data	34256-82-1(Hazardous Substances Data)
Toxicity	LD50 orally in rats: 1160 mg/kg (Upchurch) less more

Raw materials And Preparation Products

Hazard Information

Uses

Herbicide.

Definition

ChEBI: A monocarboxylic acid amide that is N-phenylacetamide carrying an ethyl and a methyl group at positions 2 and 6 respectively on the benzene ring while one of the methyl hydrogens as well as the hydrogen attached to the nitrogen atom have been replaced by a chloro and an ethoxymethyl group respectively.

Production Methods

Acetochlor is commercially produced through a two-step chemical synthesis starting from 2-ethyl-6-methylaniline. In the first step, this compound reacts with chloroacetyl chloride to form an anilide intermediate. This intermediate is then treated with chloromethyl ethyl ether in the presence of sodium hydroxide, resulting in the formation of acetochlor.

Agricultural Uses

Herbicide: A U.S. EPA restricted Use Pesticide (RUP). Approval pending in the EU. A pre-emergence herbicide for control of annual grasses and broadleaf weeds. It is used on cabbage, citrus cops, coffee, all types of corn, cotton, green peas, maize, onion, peanuts, potatoes, vineyards, sugar cane, and sugar beets, among others. It is compatible with most other pesticides.

Trade name

ACENIT®; CP 55097®; DEGREE®; ERUNIT®; FULTIME®; GUARDIAN®; HARNESS®; KEYSTONE LA®; MG 02®; MON 097®; MON 58420®; NEVIREX®; RELAY®; SACEMID®; SURPASS®; TOPHAND®; TOPNOTCH®; TROPHEE®; TROPHY®; WINNER®

Mechanism of action

Selective, absorbed mainly by shoots and roots of germinating weeds. Inhibition of very long chain fatty acids (VLCFA, inhibition of cell division)

Metabolic pathway

The initial metabolism of acetochlor is investigated to delineate the detoxification pathway using tolerant corn and soybean seedlings. Acetochlor is rapidly absorbed and metabolized by etiolated corn seedlings to the glutathione conjugate and is also rapidly metabolized by etiolated soybean seedlings. However, the initial metabolite by soybean seedlings is the homoglutathione conjugate, not the glutathione conjugate.

storage

Store at -20°C

Pesticide Type

Herbicide

Material Safety Data Sheet(MSDS)

Questions And Answer

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