Diallate

  • Carbamothioic acid, bis(1-methylethyl)-, S-(2,3-dichloro-2-propenyl) ester, (Z)- (9CI)
  • Carbamic acid, diisopropylthio-, S-(2,3-dichloroallyl)ester, (Z)
Formula
C10H17Cl2NOS
Structure
Uses
Only known use for diallate is in the selective control of wild oats and other weeds.

Registry Numbers and Inventories.
CAS
17708-57-5
RTECS
EZ8225100
RTECS class
Mutagen
Beilstein/Gmelin
2210954
Beilstein Reference
6-04
EPA OPP
78803

Properties.
Formula
C10H17Cl2NOS
Formula mass
270.24
Boiling point, °C
306
Vapor pressure, mmHg
0.0008 (25 C)
Solubility in water
Insoluble
Heat of vaporization
54.7 kJ/mol

Hazards and Protection.

Fire.
Flash Point,°C
139

Health.
Exposure effects
   Ingestion
Respiratory failure, requiring ventilatory support, has been reported following ingestions. Nausea, vomiting and diarrhea may occur.. See ingestion.
   Inhalation
Exposure to thiram or MBDT-CARB (based on animal studies) may cause weakness, ataxia, ascending paralysis and hypothermia. Peripheral neuropathy (pain, numbness and weakness of the extremities) has been noted following exposure to thiuram (the ethyl analog of thiram).
   Skin
Exposure to dusts, sprays, solutions, wettable powder suspensions or emulsions of these agents may lead to skin and mucous membrane irritation.
   Eyes
Can cause irritation.

First aid
 
   Ingestion
Consider gastric lavage after ingestion of a potentially life-threatening amount of poison if it can be performed soon after ingestion (generally within 1 hour). Administer charcoal as a slurry 240 mL water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents, 25 to 50 g in children (1 to 12 years), and 1 g/kg in infants less than 1 year old. Immediate dilution with milk or water may be of benefit in caustic or irritant chemical ingestions.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with inhaled beta2 agonist and oral or parenteral corticosteroids.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician may need to examine the area if irritation or pain persists.
   Eyes
Irrigate eye for at least 20 minutes with water or saline. If irritation persists, seek medical attention.

Transport.