Cholesta-3,5-diene

  • Cholesterilene
  • delta3,5-Cholestadiene
Formula
C27H44
Structure

Registry Numbers and Inventories.
CAS
747-90-0
EC (EINECS/ELINCS)
212-021-4
RTECS
FZ5600000
RTECS class
Other
Beilstein/Gmelin
1915549
Beilstein Reference
5-05

Properties.
Formula
C27H44
Formula mass
368.71
Melting point, °C
80
Boiling point, °C
458
Vapor pressure, mmHg
4E-8 (25 C)
Density
0.925 g/cm3 (100 C)
Solubility in water
Insoluble
Refractive index
 
Heat of vaporization
69.1 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place. Store at -20 C
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.

Fire.
Flash Point,°C
225
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.
Exposure effects
Harmful. Harmful if swallowed.
   Ingestion
Harmful if swallowed.
   Inhalation
May be harmful if inhaled.
   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 contact, immediately wash skin with soap and copious amounts of water.
   Eyes
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Transport.