Methabenzthiazuron

  • Aulin
  • Flogovital
  • Mesulid
  • N-(4-Nitro-2-phenoxyphenyl)methanesulfonamide
  • 1-(Benzothiazol-2-yl)-1,3-dimethylurea
Formula
C13H12N2O5S
Structure
Uses
Treatment of hyperpyrexia related to respiratory infections.

Registry Numbers and Inventories.
CAS
51803-78-2
EC (EINECS/ELINCS)
257-431-4
RTECS
PB0970000
RTECS class
Drug; Reproductive Effector; Human Data
UN (DOT)
3077
Merck
12,6640
Beilstein/Gmelin
2421175
Beilstein Reference
6-13
New Zealand
Listed

Properties.
Formula
C13H12N2O5S
Formula mass
308.31
Melting point, °C
143 - 144
Boiling point, °C
442
Vapor pressure, mmHg
5E-8 (25 C)
Density
1.476 g/cm3
Solubility in water
10 mg/L (20 C)
pKa/pKb
8.49 (pKa)
Heat of vaporization
69.9 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Protective gloves. Chemical safety goggles.
Respirators
Wear dust mask.
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.
Flash Point,°C
221
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.
Fire potential
May burn but does not ignite readily.
Hazards
Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
Avoid contact and inhalation.
   Ingestion
May be 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 breathing becomes difficult, call a physician.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
   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.
UN number
3077
Response guide
Hazard class
9
Packing Group
III