1-Methyl 2-pyrrollidone, USP

Name: 1-Methyl 2-pyrrollidone, USP
Brand: Vaqora Chemicals
SKU: VQ-047013

About 1-Methyl 2-pyrrollidone, USP

Listed under CAS 872-50-4, 1-Methyl 2-pyrrollidone is a laboratory solvent available from Vaqora Chemicals (USP grade). Formula C5H9NO, molecular weight 99.13 g/mol. The IUPAC name is 1-methylpyrrolidin-2-one. Alternative names: N-Methyl-2-pyrrolidone and N-Methylpyrrolidone.

The product is provided as a liquid. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for reaction medium, extraction and work-up and cleaning and rinsing. It is used across academic and industrial research and pharmaceutical manufacturing.

Available in 500 mL, 1 L, 2 L and 2.5 L packs, 1-Methyl 2-pyrrollidone is dispatched with a Certificate of Analysis (COA) to destinations worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request.

Typical applications

Reaction medium
Extraction & work-up
Cleaning & rinsing

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	1-Methyl 2-pyrrollidone, USP
Catalogue No.	VQ-047013
CAS Number	872-50-4
IUPAC name	1-methylpyrrolidin-2-one
Molecular formula	C₅H₉NO
Molecular weight	99.13 g/mol
Exact mass	99.0684
Grade	USP
HSN code	29142990
InChIKey	SECXISVLQFMRJM-UHFFFAOYSA-N
SMILES	CN1CCCC1=O
PubChem CID	13387

Physical properties
Physical form	Liquid
LogP (XLogP3)	-0.5
H-bond donors / acceptors	0 / 1
TPSA	20.3 Å²
Synonyms	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-

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P203, P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P318, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 872-50-4

Synthesis

1-Methyl 2-pyrrollidone, 99%

CAS: 872-50-4
Formula: C₅H₉NO
MW: 99.13 g/mol

VQ-001954

GC

1-Methyl 2-pyrrollidone, for GC ≥99%

CAS: 872-50-4
Formula: C₅H₉NO
MW: 99.13 g/mol

VQ-045497

HPLC / Spectroscopy

1-Methyl 2-pyrrollidone, for HPLC, for spectroscopy ≥99.50%

CAS: 872-50-4
Formula: C₅H₉NO
MW: 99.13 g/mol

VQ-045751

Spectroscopy

1-Methyl 2-pyrrollidone, for spectroscopy

CAS: 872-50-4
Formula: C₅H₉NO
MW: 99.13 g/mol

VQ-045965

AR

1-Methyl 2-pyrrollidone, GR 99%+

CAS: 872-50-4
Formula: C₅H₉NO
MW: 99.13 g/mol

VQ-001764

HPLC

N-Methyl-2-pyrrolidone, for HPLC 99%+

CAS: 872-50-4
Formula: C₅H₉NO
MW: 99.13 g/mol

VQ-001744

Frequently asked questions

What is the CAS number of 1-Methyl 2-pyrrollidone, USP?

The CAS Registry Number of 1-Methyl 2-pyrrollidone, USP is 872-50-4. It is also known as N-Methyl-2-pyrrolidone, N-Methylpyrrolidone, N-Methyl-2-pyrrolidinone.

What is the molecular formula and molecular weight of 1-Methyl 2-pyrrollidone, USP?

1-Methyl 2-pyrrollidone, USP has the molecular formula C5H9NO and a molecular weight of 99.13 g/mol. Its IUPAC name is 1-methylpyrrolidin-2-one.

Which grade and pack sizes of 1-Methyl 2-pyrrollidone, USP can I order?

We supply 1-Methyl 2-pyrrollidone, USP in USP grade, in 500 mL, 1 L, 2 L, 2.5 L, 200 L packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 1-Methyl 2-pyrrollidone, USP?

Yes. Every lot of 1-Methyl 2-pyrrollidone, USP is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 1-Methyl 2-pyrrollidone, USP be shipped internationally?

Yes. 1-Methyl 2-pyrrollidone, USP is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.