1-Methyl-2-pyrrolidinone
SIGALD/443778 - ACS reagent, ≥99.0%
Synonym: 1-
CAS Number: 872-50-4
Empirical Formula (Hill Notation): C5H9NO
Molecular Weight: 99.13
EC Number: 212-828-1
MDL Number: MFCD00003193
Linear Formula: C5H9NO
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 443778-1L.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 443778-500ML.
| anion traces | chloride (Cl-): ≤1 ppm |
| assay | ≥99.0% |
| autoignition temp. | 518 °F |
| bp | 202 °C (lit.) |
| 81-82 °C/10 mmHg (lit.) | |
| color | APHA: ≤50 |
| density | 1.028 g/mL at 25 °C (lit.) |
| expl. lim. | 9.5 % |
| form | liquid |
| grade | ACS reagent |
| impurities | ≤0.01% Free amines (as CH3NH2) |
| ≤0.05% water | |
| InChI | 1S/C5H9NO/c1-6-4-2-3-5(6) |
| InChI key | SECXISVLQFMRJM-UHFFFAOYSA |
| mp | −24 °C (lit.) |
| pH | 7.7-10.0 (20 °C, 100 g/L) |
| Quality Level | 200  |
| refractive index | n |
| SMILES string | CN1CCCC1=O |
| solubility | acetone: miscible(lit.) |
| alcohol: miscible(lit.) | |
| benzene: miscible(lit.) | |
| chloroform: miscible(lit.) | |
| ethyl acetate: miscible(lit.) | |
| water: miscible(lit.) | |
| vapor density | 3.4 (vs air) |
| vapor pressure | 0.29 mmHg ( 20 °C) |
| 0.99 mmHg ( 40 °C) |
| Application: | 1-Methyl-2-pyrrolidinone may be used as: • An alternative eluent to THF in the size exclusion chromatography (SEC) based resolution of coal-derived liquids. • Reaction medium to prepare 2-aryl and 2-alkyl benzothiazoles. • A solvent in the ultrasonic preparation of metal organic framework (MOF-177) crystals. It may be used to synthesize single-phase chalcopyrite CuInSe2 nanocrystals and potassium 3-methyl-2-oxo-pyrrolidin |
| Packaging: | 1, 2.5 L in glass bottle |
| Packaging: | 18 L in steel drum |
| Packaging: | 500 mL in glass bottle |
| Packaging: | View returnable container options . |
| Symbol |   GHS07,GHS08 |
| Signal word | Danger |
| Hazard statements | H315 - H319 - H335 - H360FD |
| Precautionary statements | P202 - P261 - P264 - P302 + P352 - P305 + P351 + P338 - P308 + P313 |
| Hazard Codes | T |
| Risk Statements | 61-36/37/38 |
| Safety Statements | 53-45 |
| WGK Germany | WGK 1 |
| Flash Point(F) | 195.8 °F - Pensky-Martens c |
| Flash Point(C) | 91 °C - Pensky-Martens clos |
| Purity | ≥99.0% |
| bp | 202 °C (lit.); 81-82 °C/10 mmHg (lit.) |
| mp | −24 °C (lit.) |
| Density | 1.028 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352005 |