1-Methyl-2-pyrrolidinone

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CAS NO.: 872-50-4 Catalog: PYR496
Formula: C5H9NO Purity: 97.00% +
Molecular Weight: 99.13 Pubchem CID: 13387
InChI Key: SECXISVLQFMRJM-UHFFFAOYSA-N
Canonical SMILES: CN1CCCC1=O
Storage: Store in a cool, dry and well-ventilated area away from incompatible substances.
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Properties Information

Melting point:
-24 °C(lit.)
Boiling point:
202 °C(lit.)
Density 
1.028 g/mL at 25 °C(lit.)
vapor density 
3.4 (vs air)
vapor pressure 
0.29 mm Hg ( 20 °C)
refractive index 
n20/D 1.479
Flash point:
187 °F
storage temp. 
2-8°C
solubility 
ethanol: miscible0.1ML/mL, clear, colorless (10%, v/v)
form 
Liquid
pka
-0.41±0.20(Predicted)
color 
=20(APHA)
Odor
Slight amine odor
PH
8.5-10.0 (100g/l, H2O, 20?)
PH Range
7.7 - 8.0
explosive limit
1.3-9.5%(V)
Water Solubility 
>=10 g/100 mL at 20 ºC
?max
283nm(MeOH)(lit.)
Sensitive 
Hygroscopic
Merck 
14,6117
BRN 
106420
Stability:
Stable, but decomposes upon exposure to light. Combustible. Incompatible with strong oxidizing agents, strong acids, reducing agents, bases.
InChIKey
SECXISVLQFMRJM-UHFFFAOYSA-N

Safety Information

Symbol(GHS) 

GHS07,GHS08
Signal word 
Danger
Hazard statements 
H315-H319-H335-H360D-H227-H360
Precautionary statements 
P210e-P405-P501a-P201-P261-P305+P351+P338-P308+P313-P280
Hazard Codes 
T,Xi
Risk Statements 
45-65-36/38-36/37/38-61-10-46
Safety Statements 
41-45-53-62-26
WGK Germany 
1
RTECS 
UY5790000
3-8-10
Autoignition Temperature
518 °F
TSCA 
Y
HS Code 
2933199090
Toxicity
LD50 orally in Rabbit: 3598 mg/kg LD50 dermal Rabbit 8000 mg/kg