Asulam

  • Methyl N-(4-aminophenylsulfonyl)carbamate
  • Methyl p-aminobenzenesulfonylcarbamate
  • N1-Methoxycarbonylsulfanilamide
Formula
C8H10N2O4S
Structure
Uses
Herbicide.

Registry Numbers and Inventories.
CAS
3337-71-1
EC (EINECS/ELINCS)
222-077-1
RTECS
FD1190000
RTECS class
Agricultural Chemical and Pesticide; Reproductive Effector
Beilstein/Gmelin
2697523
Beilstein Reference
3-14-00-01967
EPA OPP
262200
Swiss Giftliste 1
G-4871
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C8H10N2O4S
Formula mass
230.26
Melting point, °C
153
Boiling point, °C
383
Vapor pressure, mmHg
1.2E-9 (25 C)
Solubility in water
Very soluble
pKa/pKb
12.3 (pKb)
Partition coefficient, pKow
0.27

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Government approved respirator.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides, Sulfur oxides.

Fire.
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.
Hazards
Emits toxic fumes under fire conditions.
Health
-
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
-
Exposure effects
Harmful. Harmful if swallowed.
   Ingestion
Harmful if swallowed.
   Inhalation
May be harmful if inhaled. Material may be irritating to mucous membranes and upper respiratory tract.
   Skin
May cause skin irritation. May be harmful if absorbed through the skin.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of skin contact, flush with copious amounts of water for at least 15 minutes. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.