English name: N-Methyl-2-pyrrolidone

CAS Number: 872-50-4

Molecular formula: C5H9NO

Molecular weight: 99.13

EINECS number: 212-828-1

MDL No. : MFCD00003193

Stats

Melting point -24 °C (lit.)

Boiling point 202 °C (lit.) 81-82 °C/10 mmHg (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 conditions Store at +5°C to +30°C.

ethanol solubility: miscible0.1ML/mL, clear, colorless (10%, v/v)

Liquid form

Acidity coefficient (pKa)-0.41±0.20(Predicted)

Color ≤20(APHA)

The Odor is Slight amine odor

PH 8.5-10.0 (100g/l, H2O, 20℃)

Acid-base indicator discoloration ph range 7.7-8.0

explosive limit 1.3-9.5%(V)

Water solubility >=10 g/100 mL at 20 oC

Maximum wavelength (λmax)283nm(MeOH)(lit.)

Sensitivity Hygroscopic

Merck14, 6117

BRN106420

Stable, but decomposes upon exposure to light. Combustible. Incompatible with strong oxidizing agents, strong acids, reducing agents, bases.

InChIKeySECXISVLQFMRJM-UHFFFAOYSA-N

LogP-0.46 at 25℃

Safety information

hazard symbol (GHS)GHS hazard pictogramsGHS hazard pictograms

GHS07,GHS08

Danger

Risk Description H315-H319-H335-H360D

Precautions P202-P261-P264-P302+P352-P305+P351+P338-P308+P313

Hazard category code 45-65-36/38-36/37/38-61-10-46

Safety instructions 41-45-53-62-26

WGK Germany1

RTECS number UY5790000

F3-8-10

Spontaneous combustion temperature 518 °F

TSCAY

Customs Code: 2933199090

LD50 orally in Rabbit: 3598 mg/kg LD50 dermal Rabbit 8000 mg/kg