Campesterol

  • (24R)-Ergost-5-en-3beta-ol
  • 24a-Methyl-5-cholesten-3b-ol
  • (24R)-Methylcholest-5-en-3b-ol
Formula
C28H48O
Structure
Description
White solid.
Uses
May lower absorption of dietary cholesterol.

Registry Numbers and Inventories.
CAS
474-62-4
EC (EINECS/ELINCS)
207-484-4
20/21/22 36/37/38
Merck
12,1776
Beilstein/Gmelin
3216975
Beilstein Reference
3-06-00-02680
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C28H48O
Formula mass
400.69
Melting point, °C
158 - 159
Boiling point, °C
490
Vapor pressure, mmHg
1E-11 (25 C)
Solubility in water
Insoluble
Heat of vaporization
87.1 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. 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
Oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide.

Fire.
Flash Point,°C
214
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
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Harmful. Harmful by inhalation and if swallowed. Irritating to eyes and skin. Target organ(s): Eyes. Kidneys.
   Ingestion
Harmful if swallowed.
   Inhalation
Harmful if inhaled. Material is irritating to mucous membranes and upper respiratory tract.
   Skin
Causes skin irritation. Harmful if absorbed through skin.
   Eyes
Causes 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.