Sigma-Aldrich 443778 1-Methyl-2-pyrrolidinone ACS reagent, ≥99.0% 500 mL
| Sigma-Aldrich 443778 1-Methyl-2-pyrrolidinone ACS reagent, ≥99.0% 500 mL |
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Synonym(s): 1-Methyl-2-pyrrolidone, N-Methyl-2-pyrrolidone, NMP
Empirical Formula (Hill Notation): C5H9NO
CAS Number: 872-50-4
Molecular Weight: 99.13
Beilstein: 106420
EC Number: 212-828-1
MDL number: MFCD00003193
PubChem Substance ID: 329756501
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PROPERTIES
grade ACS reagent
Quality Level 200
vapor density 3.4 (vs air)
vapor pressure 0.29 mmHg (20 °C) 0.99 mmHg ( 40 °C)
assay ≥99.0%
form liquid
autoignition temp. 518 °F
expl. lim. 9.5 %
impurities
≤0.01% Free amines (as CH3NH2)
≤0.05% water
color APHA: ≤50
refractive index n20/D 1.47 (lit.)
pH 7.7-10.0 (20 °C, 100 g/L)
bp 202 °C (lit.) 81-82 °C/10 mmHg (lit.)
mp −24 °C (lit.)
solubility
acetone: miscible(lit.)
alcohol: miscible(lit.)
benzene: miscible(lit.)
chloroform: miscible(lit.)
ethyl acetate: miscible(lit.)
water: miscible(lit.)
density 1.028 g/mL at 25 °C (lit.)
anion traces chloride (Cl-): ≤1 ppm
SMILES string CN1CCCC1=O
InChI 1S/C5H9NO/c1-6-4-2-3-5(6)7/h2-4H2,1H3
InChI key SECXISVLQFMRJM-UHFFFAOYSA-N |