Metoxuron

  • 1-(3-Chloro-4-methoxyphenyl)-3,3-dimethylurea
  • 3-(3-Chloro-4-methoxyphenyl)-1,1-dimethylurea
  • N'-(3-Chloro-4-methoxyphenyl)-N,N-dimethyl urea
  • N-(3-Chloro-4-methoxyphenyl)-N',N'-dimethylurea
Formula
C10H13ClN2O2
Structure
Uses
Herbicide.

Registry Numbers and Inventories.
CAS
19937-59-8
EC (EINECS/ELINCS)
243-433-2
EC Index Number
006-033-00-7
RTECS
YS5775000
RTECS class
Agricultural Chemical and Pesticide; Mutagen
UN (DOT)
3077
Beilstein/Gmelin
2128284
Beilstein Reference
4-13-00-01272
EPA OPP
294600
Swiss Giftliste 1
G-3093
Austrailia AICS
Listed

Properties.
Formula
C10H13ClN2O2
Formula mass
228.70
Melting point, °C
124 - 127
Boiling point, °C
392
Vapor pressure, mmHg
2.4E-6 (25 C)
Solubility in water
Insoluble
pKa/pKb
13.8 (pKa)
Heat of vaporization
64.1 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Protective gloves. Chemical safety goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent dust cloud. Avoid inhalation of asbestos dust.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides, Hydrogen chloride gas.

Fire.
Flash Point,°C
191
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
May burn but does not ignite readily.
Hazards
Containers may explode when heated.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
0
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
Dangerous for the environment. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
   Ingestion
May be harmful if swallowed.
   Inhalation
Inhalation of material may be harmful.
   Skin
Contact may cause burns.
   Eyes
See Skin.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
3077
Response guide
Hazard class
9
Packing Group
III