1-Methyl-2-pyrrolidinone CAS NO.872-50-4

product name: 1-methyl-2-pyrrolidinone

cas: 872-50-4
mf: c5h9no
mw: 99.13
einecs: 212-828-1

mol file: 872-50-4.mol
1-methyl-2-pyrrolidinone structure
1-methyl-2-pyrrolidinone chemical properties
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
fp 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
λmax 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
cas database reference 872-50-4(cas database reference)
nist chemistry reference 2-pyrrolidinone, 1-methyl-(872-50-4)
epa substance registry system n-methyl-2-pyrrolidone (872-50-4)
safety information
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
f 3-8-10
autoignition temperature 518 °f
tsca y
hs code 2933199090
hazardous substances data 872-50-4(hazardous substances data)
toxicity ld50 orally in rabbit: 3598 mg/kg ld50 dermal rabbit 8000 mg/kg