1-Methyl-2(1H)-pyridinone

  • 1-Methyl-2-pyridone
  • 1-Methyl-2-pyridinone
  • N-Methyl-2-pyridone
  • 1-Methyl-1,2-dihydro-2-pyridinone
  • 1-Methyl-2-oxopyridine
  • -Methyl-2(1H)-pyridone
Formula
C6H7NO
Structure
Description
Clear brown solid.

Registry Numbers and Inventories.
CAS
694-85-9
EC (EINECS/ELINCS)
211-777-2
RTECS
UV1148100
RTECS class
Agricultural Chemical and Pesticide
Beilstein/Gmelin
107805
Beilstein Reference
5-21-07-00109
Canada DSL/NDSL
NDSL
US TSCA
Listed

Properties.
Formula
C6H7NO
Formula mass
109.12
Melting point, °C
33
Boiling point, °C
250
Vapor pressure, mmHg
0.02 (25 C)
Density
1.1321 g/cm3 (18 C)
Solubility in water
Very soluble
Refractive index
1.5615 (17.7 C)
pKa/pKb
13.71 (pKb)
Partition coefficient, pKow
-0.23
Heat of vaporization
48.7 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. 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
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Provide ventilation.
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong oxidizing agents, acid chlorides.
Decomposition
Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Fire.
Flash Point,°C
125
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. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Exposure effects
Effects may be delayed.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
Causes respiratory tract irritation. Can produce delayed pulmonary edema.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation. May cause chemical conjunctivitis.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.