1-Methyl-2-pyrrolidinone
SIAL/78769 - analytical standard
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
| application(s) | cleaning products cosmetics environmental food and beverages personal care |
| assay | ≥99.9% (GC) |
| autoignition temp. | 518 °F |
| bp | 202 °C (lit.) |
| 81-82 °C/10 mmHg (lit.) | |
| density | 1.028 g/mL at 25 °C (lit.) |
| expl. lim. | 9.5 % |
| format | neat |
| grade | analytical standard |
| InChI | 1S/C5H9NO/c1-6-4-2-3-5(6) |
| InChI key | SECXISVLQFMRJM-UHFFFAOYSA |
| mp | −24 °C (lit.) |
| Quality Level | 100 ![]() |
| refractive index | n |
| n |
|
| shelf life | limited shelf life, expiry date on the label |
| SMILES string | CN1CCCC1=O |
| technique(s) | gas chromatography (GC): suitable |
| HPLC: suitable | |
| 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 eluent and extraction solvent for the extraction of soluble materials in soil samples using size exclusion chromatography. |
| Application: | Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support. |
| General description: | 1-Methyl-2-pyrrolidinone is a polar solvent widely used in organic chemistry and polymer chemistry. On a large scale, it finds applications in the recovery and purification of acetylenes, olefins, and diolefins, gas purification, and aromatics extraction from feedstocks. |
| General description: | This compound is listed in the SVHC (Substances of very high concern) candidate list ![]() |
| General description: | This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. Find all available reference materials for compounds listed in 10/2011 here ![]() |
| 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 |
| RIDADR | NA 1993 / PGIII |
| WGK Germany | WGK 1 |
| Flash Point(F) | 195.8 °F - Pensky-Martens c |
| Flash Point(C) | 91 °C - Pensky-Martens clos |
| Purity | ≥99.9% (GC) |
| 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 | 41116107 |



