Acetochlor

Description

Acetochlor · CAS 123113-74-6 · C14H20ClNO2. UNII 8L08WMO94K. Boiling Point: BP: 172 °C at 5 mm Hg; Boiling Point: BP: 134 °C at 0.4 torr; Melting Point: 10.6 °C.

Identification

CAS Registry Number	123113-74-6
PubChem CID	1988
Molecular formula	C14H20ClNO2
IUPAC name	2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)acetamide
UNII (FDA)	8L08WMO94K

Computed Descriptors

Molecular Weight	269.77
XLogP3	3.2
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	6
Exact Mass	269.1182566
Monoisotopic Mass	269.1182566
Topological Polar Surface Area	29.5
Heavy Atom Count	18
Formal Charge	0

Physical & Chemical Properties

Boiling Point	BP: 172 °C at 5 mm Hg
Boiling Point	BP: 134 °C at 0.4 torr
Melting Point	10.6 °C
Flash Point	>93 °C (tag closed cup)
Solubility	In water, 233 mg/L at 25 °C
Vapor Pressure	0.000028 [mmHg]
Vapor Pressure	2.2X10-2 mPa /1.67X10-7 mm Hg/ at 20 °C
LogP	log Kow = 4.14
LogP	3.03
Collision Cross Section	159.1 Ų [M+Na]+

Physical description & handling notes

• Light amber to violet oily liquid; [HSDB] Light yellow liquid; [MSDSonline]
• Clear, viscous liquid
• Pale straw-colored oil
• Thick, oily liquid, light amber to violet
• Aromatic odor
• Soluble in 1,2-dichloroethane, p-xylene, n-heptane

GHS Hazard Classification

Reported hazard statements	H315, H317, H332, H335, H351, H373, H400, H410

Documented Uses

• Used as selective pre-emergence herbicide for control of most annual grasses, certain annual broad-leaved weeds, and yellow nutsedge; [HSDB] Registered for use on field corn and popcorn; [EPA REDs]
• Used pre-emergence or pre-plant to control annual grasses, certain broadleaf weeds and yellow nutsedge (Cyperus esculentus) in maize, peanuts, soy beans, cotton, potatoes and sugar cane
• /Acetochlor/ is absorbed by the shoots (less so by the roots) of germinating plants and inhibits protein synthesis in susceptible plants.
• It is used to control weeds in corn, and is particularly useful as a replacement for atrazine in the case of some important weeds. (L920).
• Information on 2 consumer products that contain Acetochlor in the following categories is provided:
• Acetochlor is produced by reaction of chloroacetyl chloride with the azomethine of 2-ethyl-6-methylaniline and formaldehyde, followed by treatment with ethanol.

Synonyms

acetochlor; 34256-82-1; 2-Chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)acetamide; Azetochlor; Acetochlore; Harness; Acenit; Erunit; Nevirex; Acetamide, 2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)-; Caswell No. 003B; DTXSID8023848; MON 097; MG 02; 2-Chloro-2'-methyl-6-ethyl-N-ethoxymethylacetanilide; 2-Chloro-N-(ethoxymethyl)-6'-ethyl-o-acetotoluidide

Frequently Asked Questions

What are the CAS number and molecular formula of Acetochlor?

CAS 123113-74-6; molecular formula C14H20ClNO2; molecular weight — g/mol.

What other names is Acetochlor known by?

acetochlor, 34256-82-1, 2-Chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)acetamide, Azetochlor, Acetochlore, Harness.

Is Acetochlor classified as hazardous?

Hazard statements reported: H315, H317, H332, H335, H351.

What are the key physical properties of Acetochlor?

Boiling Point: BP: 172 °C at 5 mm Hg; Boiling Point: BP: 134 °C at 0.4 torr; Melting Point: 10.6 °C; Flash Point: >93 °C (tag closed cup).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.