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M-Pyrol · CAS 51013-18-4 · C5H9NO. UNII JR9CE63FPM. Boiling Point: 396 °F at 760 mmHg (NTP, 1992); Boiling Point: 202 °C at 760 mm Hg; Boiling Point: 202 °C.
| CAS Registry Number | 51013-18-4 |
|---|---|
| PubChem CID | 13387 |
| Molecular formula | C5H9NO |
| IUPAC name | 1-methylpyrrolidin-2-one |
| UNII (FDA) | JR9CE63FPM |
| Molecular Weight | 99.13 |
|---|---|
| XLogP3 | -0.5 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 99.068413911 |
| Monoisotopic Mass | 99.068413911 |
| Topological Polar Surface Area | 20.3 |
| Heavy Atom Count | 7 |
| Formal Charge | 0 |
| Boiling Point | 396 °F at 760 mmHg (NTP, 1992) |
|---|---|
| Boiling Point | 202 °C at 760 mm Hg |
| Boiling Point | 202 °C |
| Boiling Point | 396 °F |
| Boiling Point | 202 °C @760 [mm Hg] |
| Melting Point | -9 °F (NTP, 1992) |
| Melting Point | -25 °C |
| Melting Point | -24.4 °C |
| Melting Point | -9 °F |
| Melting Point | -23.09 °C |
| Regulatory & Food Contact | FDA Cumulative Estimated Daily Intake (CEDI): FCS FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Surfactant |
|---|---|
| GHS notification summary | 0.1% (1 / 2679) |
| GHS notification summary | 0.1% (1 / 2679) |
|---|---|
| Reported hazard statements | H315, H319, H335, H360 (94.2%), H227, H336, H373, H361 |
H315: Causes skin irritation [Warning Skin corrosion/irritation]
H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
1-METHYL-2-PYRROLIDINONE; 872-50-4; N-Methyl-2-pyrrolidone; N-Methylpyrrolidone; N-Methyl-2-pyrrolidinone; Methylpyrrolidone; 1-Methyl-2-pyrrolidone; 1-Methylpyrrolidone; Methyl pyrrolidone; N-Methylpyrrolidinone; 1-Methylpyrrolidinone; n-methyl-pyrrolidone; 1-Methyl-5-pyrrolidinone; 2-Pyrrolidinone, 1-methyl-; 1-Methylazacyclopentan-2-one; N-Methyl-gamma-butyrolactam
CAS 51013-18-4; molecular formula C5H9NO; molecular weight — g/mol.
1-METHYL-2-PYRROLIDINONE, 872-50-4, N-Methyl-2-pyrrolidone, N-Methylpyrrolidone, N-Methyl-2-pyrrolidinone, Methylpyrrolidone.
Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; CIR / INCI: Surfactant.
0.1% of GHS notifications report no hazard classification (1 of 2679).
Boiling Point: 396 °F at 760 mmHg (NTP, 1992); Boiling Point: 202 °C at 760 mm Hg; Boiling Point: 202 °C; Boiling Point: 396 °F.
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.
Store in a cool, dry, well-ventilated place away from heat, direct sunlight and incompatible materials. Keep container tightly closed. Use appropriate personal protective equipment and refer to the SDS for full safety guidance before handling.
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