S-Ethyl dipropylthiocarbamate

  • EPTC
  • Carbamothioic acid, dipropyl-, S-ethyl ester
  • S-Ethyl dipropylcarbamothioate
  • S-Ethyl-N,N-dipropylthiocarbamate
Formula
C9H19NOS
Structure
Description
Clear yellow or light yellow liquid.
Uses
Herbicide.

Registry Numbers and Inventories.
CAS
759-94-4
EC (EINECS/ELINCS)
212-073-8
EC Index Number
006-030-00-0
EC Class
Harmful
RTECS
FA4550000
RTECS class
Agricultural Chemical and Pesticide; Mutagen; Human Data
UN (DOT)
2992
Merck
12,3674
Beilstein/Gmelin
1762751
Beilstein Reference
4-04-00-00487
RCRA
U390
EPA OPP
41401
Swiss Giftliste 1
G-2489
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C9H19NOS
Formula mass
189.32
Melting point, °C
-30
Boiling point, °C
254
Vapor pressure, mmHg
0.02 (25 C)
Vapor density (air=1)
6.5
Density
0.958 g/cm3 (25 C)
Solubility in water
Insoluble
Refractive index
1.4772 (25 C)
Partition coefficient, pKow
3.21
Heat of vaporization
49.2 kJ/mol

Hazards and Protection.
Storage
Indefinite storage life under normal ambient conditions.
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
If Tyvek-type disposable protective clothing is not worn during handling of this chemical, wear disposable Tyvek-type sleeves taped to your gloves.
Respirators
Wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.
Small spills/leaks
If you spill this chemical, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with alcohol followed by washing with a strong soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Stability
Stable under storage conditions. Stable < 200 C hydrolysed by strong acids on heating.
Incompatibilities
Incompatible with acids, peroxides, and acid halides.
Decomposition
When heated to decomposition it emits very toxic fumes of nitrogen oxides and sulfur oxides.

Fire.
Flash Point,°C
107
Fire fighting
Fires involving this compound should be controlled with a dry chemical, carbon dioxide or Halon extinguisher.
Fire potential
This material is probably combustible.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
4
Exposure effects
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). No adverse reproductive effects (testicular parameters) in male mice were observed following methyl thiophanate doses up to 1000 mg/kg orally for 5 consecutive days (Traina et al, 1998). Maternal toxicity was evident in female rats.
   Ingestion
Nausea, vomiting and diarrhea may occur.
   Inhalation
Respiratory failure, requiring ventilatory support, has been reported following ingestions.
   Skin
Exposure to dusts, sprays, solutions, wettable powder suspensions or emulsions of these agents may lead to skin and mucous membrane irritation.
   Eyes
Redness.

First aid
 
   Ingestion
DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, administer a slurry of activated charcoal in water and simultaneously call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
UN number
2992
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
ECB
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
P