Methyl carbamate

  • Methylurethan
  • Methylurethane
  • Urethylane
Formula
NH2COOCH3
Structure
Description
White crystals.
Uses
Used in europe as pharmaceutical intermediate.

Registry Numbers and Inventories.
CAS
598-55-0
EC (EINECS/ELINCS)
209-939-2
S 22 36/37
RTECS
FC2450000
RTECS class
Tumorigen; Mutagen; Primary Irritant
UN (DOT)
2811
Merck
12,6115
Beilstein/Gmelin
635779
Beilstein Reference
4-03-00-00037
Swiss Giftliste 1
G-7371
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C2H5NO2
Formula mass
75.07
Melting point, °C
53 - 54
Boiling point, °C
177
Vapor pressure, mmHg
1 (25 C)
Density
1.1361 g/cm3 (56 C)
Solubility in water
Very soluble
Viscosity
2.28 cp (56 C)
Refractive index
1.41 (55 C)
pKa/pKb
13.37 (pKa)
Partition coefficient, pKow
-0.66
Heat of vaporization
41.5 kJ/mol

Hazards and Protection.
Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. 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
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Disposal code
3
Stability
Stable under normal temperatures and pressures. Freely sublimes at room temperature.
Incompatibilities
Strong oxidizing agents, strong bases, phosphorous halides.
Decomposition
Carbon monoxide, oxides of nitrogen, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
105
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire.
Fire potential
This material is probably combustible.

Health.
Carcinogin
CP65
Poison_Class
4
Exposure effects
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

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. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Remove contaminated clothing and shoes.
   Eyes
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
2811
Response guide
HS Code
2924 19 00