1-Methyl-2-pyrrolidinone, 99.5%, Extra Dry over Molecular Sieve, AcroSeal™, ACROS Organics™

Product Code	Brand	Quantity	Packaging
10383692	Acros Organics 364381000	100mL	AcroSeal™ Glass Bottle
10079051	Acros Organics 364380010	1L	AcroSeal™ Glass bottle
10304122	Acros Organics 364380025	2.5L	AcroSeal™ Glass Bottle

Chemical Identifiers

• CAS: 872-50-4
• Molecular Weight (g/mol): 99.133
• InChI Key: SECXISVLQFMRJM-UHFFFAOYSA-N
• PubChem CID: 13387
• IUPAC Name: 1-methylpyrrolidin-2-one

• Molecular Formula: C5H9NO
• MDL Number: MFCD00003193
• Synonym: 1-methyl-2-pyrrolidinone, n-methyl-2-pyrrolidone, n-methylpyrrolidone, 1-methyl-2-pyrrolidone, methylpyrrolidone, m-pyrol, n-methyl-2-pyrrolidinone, n-methylpyrrolidinone, 1-methylpyrrolidinone, 2-pyrrolidinone, 1-methyl
• ChEBI: CHEBI:7307
• SMILES: CN1CCCC1=O

Specifications

• Chemical Name or Material: 1-Methyl-2-pyrrolidinone
• CAS: 872-50-4
• CAS Max %: 100.0
• Molecular Formula: C5H9NO
• Beilstein: 21, 237
• Merck Index: 15, 6190
• InChI Key: SECXISVLQFMRJM-UHFFFAOYSA-N
• IUPAC Name: 1-methylpyrrolidin-2-one
• PubChem CID: 13387
• Formula Weight: 99.13
• Percent Purity: 99.5%
• Density: 1.0300g/mL
• Packaging: AcroSeal™ Glass Bottle
• Solubility: Solubility in water: 1000g/L (20°C). Other solubilities: miscible with most common organic solvents
• Storage Information: Darkens on ageing
• Flash Point: 91°C
• Boiling Point: 202.0°C
• Melting Point: -24.0°C

• Name Note: Over Molecular Sieves
• CAS Min %: 99.4
• Assay Percent Range: 99.5%
• MDL Number: MFCD00003193
• Fieser: 01,696; 02,281; 09,316; 11,346
• Synonym: 1-methyl-2-pyrrolidinone, n-methyl-2-pyrrolidone, n-methylpyrrolidone, 1-methyl-2-pyrrolidone, methylpyrrolidone, m-pyrol, n-methyl-2-pyrrolidinone, n-methylpyrrolidinone, 1-methylpyrrolidinone, 2-pyrrolidinone, 1-methyl
• SMILES: CN1CCCC1=O
• Molecular Weight (g/mol): 99.133
• ChEBI: CHEBI:7307
• Physical Form: Liquid
• Grade: Extra Dry over Molecular Sieve
• Infrared Spectrum: Authentic
• Refractive Index: 1.4690 to 1.4710
• Specific Gravity: 1.03
• Water: 0.005% Max. (Coulometric)
• Viscosity: 1.67 mPa.s (20°C)
• Color: Colorless
• Quantity: 100mL

Safety and Handling

Product Identifier

• 1-Methyl-2-pyrrolidinone

Signal Word

• Danger

Hazard Category

• Serious eye damage/eye irritation Category 2
• Reproductive toxicity Category 1B
• Skin corrosion/irritation Category 2
• Specific target organ toxicity Category 3

Hazard Statement

• H360D-May damage the unborn child.
• H319-Causes serious eye irritation.
• H335-May cause respiratory irritation.
• H315-Causes skin irritation.

Precautionary Statement

• P201-Obtain special instructions before use.
• P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P302+P352-IF ON SKIN: Wash with plenty of water/.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
• P308+P313-IF exposed or concerned: Get medical advice/attention.