5-Chloro-2-thienylsulfonyl chloride

  • 2-Chloro-5-chlorosulfonylthiophene
  • 2-Chlorothiophene-5-sulfonyl chloride
  • 5-Chloro-2-thiophenesulfonyl chloride
Formula
C4H2Cl2O2S2
Structure
Description
Solid.

Registry Numbers and Inventories.
CAS
2766-74-7
S 26 36/37/39 45
UN (DOT)
3265
Beilstein/Gmelin
130710
Beilstein Reference
5-18-09-00433

Properties.
Formula
C4H2Cl2O2S2
Formula mass
217.08
Melting point, °C
28
Boiling point, °C
64 - 66 (0.05 torr)
Density
1.623 g/cm3 (20 C)
Solubility in water
Insoluble
Refractive index
1.59 (20 C)

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container. Corrosives area. Store under an inert atmosphere.
Handling
Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Protection
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.
Stability
No data.
Incompatibilities
Strong bases.
Decomposition
Hydrogen chloride, carbon monoxide, oxides of sulfur, carbon dioxide.

Fire.
Flash Point,°C
> 113
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Health.
Exposure effects
   Ingestion
Causes gastrointestinal tract burns.
   Inhalation
Causes chemical burns to the respiratory tract.
   Skin
Causes skin burns.
   Eyes
Causes eye burns.

First aid
 
   Ingestion
Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
3265
Response guide