Mephenesin

  • 3-(2-Methylphenoxy)-1,2-propanediol
  • Cresoxypropanediol
  • Glyceryl o-tolyl ether
  • 3-o-Toloxy-1,2-propanediol
Formula
C10H14O3
Structure
Uses
Skeletal muscle relaxant; reduces muscle spasm by depression of brainstem neurons.

Registry Numbers and Inventories.
CAS
59-47-2
EC (EINECS/ELINCS)
200-427-4
20/21/22
RTECS
TZ1225000
RTECS class
Drug
Merck
13,5875
Beilstein/Gmelin
2047373
Beilstein Reference
4-06-00-01952
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C10H14O3
Formula mass
182.22
Melting point, °C
70
Boiling point, °C
311
Vapor pressure, mmHg
0.00045 (25 C)
Solubility in water
Slightly soluble
pKa/pKb
13.45 (pKa)
Heat of vaporization
58.3 kJ/mol

Hazards and Protection.
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective
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.
Decomposition
Carbon monoxide, Carbon dioxide.

Fire.
Flash Point,°C
162
Fire fighting
Extinguish using 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 by inhalation, in contact with skin and if swallowed. Target organ(s): Skeletal muscle.

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 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.