Fenuron

  • Beet kleen
  • Croptex chrome
  • Croptex ruby
  • Dibar
  • N,N-dimethyl-n-Phenylurea
  • 1,1-Dimethyl-3-phenylurea
Formula
C6H5NHCON(CH3)2
Structure
Description
White, crystalline solid.
Uses
Weed and brush killer.

Registry Numbers and Inventories.
CAS
101-42-8
EC (EINECS/ELINCS)
202-941-4
RTECS
YT1450000
RTECS class
Agricultural Chemical and Pesticide; Mutagen
Merck
12,4050
Beilstein/Gmelin
2208535
Beilstein Reference
4-12-00-00735
EPA OPP
35507
Swiss Giftliste 1
G-2721
Canada DSL/NDSL
DSL
US TSCA
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
C9H12N2O
Formula mass
164.21
Melting point, °C
136
Density
1.25 g/cm3
Solubility in water
Insoluble
Partition coefficient, pKow
1.15

Hazards and Protection.
Storage
Keep in well ventilated area.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Self-contained breathing apparatus must be worn. Rubber gloves, hats, suits and boots must be worn.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.
Stability
Stable at neutral pH but hydrolyzed in acid and basic media. Stable toward oxidation and moisture. Stable to light.

Fire.
Fire fighting
Self-contained breathing apparatus, rubber gloves, hats, suits and boots must be worn. Highly toxic fumes are imminent.

Health.
Poison_Class
4
Exposure effects
   Ingestion
Nausea, vomiting, and diarrhea may be noted following ingestion.
   Skin
Cyanosis unresponsive to oxygen therapy may be noted in patients with methemoglobinemia due to absorption of excessive amounts of these agents.

First aid
 
   Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
   Inhalation
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.