Halosulfuran-methyl

  • MON 12000
  • NC-319
  • 1H-Pyrazole-4-carboxylic acid, 3-chloro-5-(((((4,6-dimethoxy-2-pyrimidinyl)amino)carbonyl) amino)sulfonyl)-1-methyl-, methyl ester
  • Sempra
  • Permit
  • Inpool
Formula
C13H15ClN6O7S
Structure
Description
Beige granules with the odor of scorched vanilla.
Uses
Substance is used as a herbicide.

Registry Numbers and Inventories.
CAS
100784-20-1
RTECS
UQ6392606
Merck
12,10397
EPA OPP
128721
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
C13H15ClN6O7S
Formula mass
434.82
Melting point, °C
172 - 173
Density
1.67 g/cm3
Solubility in water
Insoluble
pKa/pKb
3.46 (pKa)
Partition coefficient, pKow
1.69

Hazards and Protection.
Storage
Store under cool, dry conditions (below 120 F). Do not store under moist conditions.
Small spills/leaks
Sweep up spill, scoop or vacuum and remove. Flush residual spill area with water. Contain large spills with dikes and transfer the material to appropriate containers for reclamation or disposal. Absorb remaining material or small spills with an inert material and then place in a chemical waste container. Flush residual spill area with water.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Reducing agents and acids.

Fire.
Fire fighting
Use water (flood with water), dry chemical, CO2, or alcohol foam. Wear full protective clothing and self-contained breathing apparatus. Equipment should be thoroughly cleaned after use.
Fire potential
Not flammable.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Halosulfuron-methyl, the active herbicidal ingredient in Sandea herbicide, is considered to be practically nontoxic orally or by inhalation and no more than slightly toxic dermally. It is slightly irritating to eyes and essentially nonirritating to the skin.

First aid
 
   Ingestion
Call poison control center or physician immediately for treatment advice. Remove visible particles from mouth. Have person rinse mouth thoroughly with warm water, spit out rinse water. Have person sip a glass of water if able to swallow. Do not induce vomiting unless told to do so by the poison control center or doctor. Do not give anything by mouth to an unconscious person.
   Eyes
Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses, if present, after 5 minutes, then continue rinsing eye. Call poison control center or physician for treatment advice.

Transport.