Metazachlor

CAS NO.：67129-08-2
Empirical Formula: C14H16ClN3O
Molecular Weight: 277.75
MDL number: MFCD00055509
EINECS: 266-583-0
SAFETY DATA SHEET (SDS)
Update Date: 2025-08-21 22:16:43

What is Metazachlor?

Chemical properties

White to Off-White Solid

The Uses of Metazachlor

A chloroacetanilide herbicide used on vegetable crops.

Definition

ChEBI: An organochlorine compound that is 2-chloroacetamide substituted by a 2,6-dimethylphenyl and a (1H-pyrazol-1-ylmethyl) group at the nitrogen atom.

Metabolic pathway

Metazachlor is transformed in soil into 2-hydroxy-N- (2,6-dimethylphenyl)-N-(1H-pyrazol-1- ylmethyl)acetamide, 2-chloro-N-(2,6- dimethylphenyl)acetamide, and 4,4' -methylenebis-(2,6- dimethylbenzenamine), and the soil concentration of the benzenamine is lower than 0.1 ppm.

Properties of Metazachlor

Melting point:	74-78°C
Boiling point:	439.2±45.0 °C(Predicted)
Density	1.237-1.323 g/cm3(Temp: 25 °C)
Flash point:	2 °C
storage temp.	Sealed in dry,2-8°C
solubility	Chloroform, Methanol
form	neat
pka	1.54±0.10(Predicted)
form	Solid
color	Off-White to Pale Beige
BRN	621550
CAS DataBase Reference	67129-08-2(CAS DataBase Reference)
NIST Chemistry Reference	Acetamide, 2-chloro-n-(2,6-dimethylphenyl)-n-(1h-pyrazol-1-ylmethyl)-(67129-08-2)

Safety information for Metazachlor

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07 Health Hazard GHS08 Environment GHS09
GHS Hazard Statements	H302:Acute toxicity,oral H317:Sensitisation, Skin H351:Carcinogenicity H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P201:Obtain special instructions before use. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P308+P313:IF exposed or concerned: Get medical advice/attention.