2-Pyrrolidone
Lifeworth supplies 2-Pyrrolidone for industrial buyers requiring alpha-pyrrolidone quality, specification clarity, purity review, moisture control, batch documentation, and export-ready chemical packaging.
- 2-Pyrrolidone / 2-Pyrrolidinone, CAS 616-45-5.
- Used as an intermediate and solvent in industrial chemical systems.
- Suitable for NVP, PVP-related, polymer, resin, and specialty synthesis routes.
- COA, SDS/MSDS, TDS, specification sheet, and sample support available.
- Bulk chemical supply support for importers, distributors, and manufacturers.
Tell us your application, target specification, and destination market so we can support grade selection, documentation review, and packaging recommendations.

Quick Specs
Identity
INCI Name
CAS Number
Molecular Formula
Molecular Weight
Quality
Assay
Grade
Assay Method
Handling
Appearance
Form
Solubility
Applications
Commercial Terms
MOQ
MOQ depends on packaging and specification.
Lead Time
3–7 working days for standard items; bulk orders by schedule.
Incoterms
EXW / FOB / CIF / DAP / DDP
Sample
Free sample (shipping charged)
Quality & Documents
COA (per batch) • SDS/MSDS • TDS/Spec sheet (on request). Additional statements depend on product and market.
Product Overview
2-Pyrrolidone is an industrial lactam intermediate and high-boiling solvent commonly used in NVP production, PVP-related materials, polymer systems, resin processing, and chemical synthesis applications. It is usually supplied as a colorless to pale yellow liquid or hygroscopic material, and buyers often review purity, moisture, color, acidity, residue, packaging, and documentation before technical or commercial evaluation. It is commonly considered for pyrrolidone-series intermediates, solvent systems, specialty chemical production, and polymer-related routes, with sample support and batch documentation available for sourcing reference.

Applications
NVP and PVP-Related Intermediates: 2-Pyrrolidone is commonly reviewed as a pyrrolidone-series intermediate for N-vinylpyrrolidone and related PVP material routes.
Industrial Solvent Systems: 2-Pyrrolidone can be used as a high-boiling solvent in selected industrial systems requiring strong polarity, good solvency, and controlled specification.
Polymer & Resin Processing: This ingredient may be used in polymer, resin, or specialty material systems where solvency and intermediate function are relevant.
Chemical Synthesis: 2-Pyrrolidone may be used in chemical synthesis and downstream production routes after compatibility, purity target, and water content review.
How to Choose the Right Grade / Form
For NVP Production: Choose a 2-Pyrrolidone grade with suitable purity, water content, color, and impurity control for downstream N-vinylpyrrolidone production or related processes.
For PVP-Related Material Routes: Choose a specification that supports the intended pyrrolidone-series intermediate route and downstream polymer quality requirements.
For Industrial Solvent Use: Choose a grade according to solvency performance, moisture limit, color, residue, and process compatibility.
For Export Supply: Choose packaging, labeling, and document support according to destination market, transport route, storage conditions, and import clearance requirements.
Technical & Formulation Notes
Technical Notes
Manufacturing & Process
2-Pyrrolidone is supplied as an industrial intermediate and solvent material for downstream chemical manufacturing and formulation systems.
Commercial specifications can be reviewed according to purity target, moisture limit, color requirement, packaging format, and application route.
Compatibility / Formulation Notes
For NVP-related routes, review purity, moisture, impurity profile, color, and process compatibility before scale-up.
For solvent systems, test solvency, viscosity impact, residue, odor, and compatibility with other solvents or additives.
For polymer and resin systems, confirm material compatibility, process temperature, water tolerance, and downstream quality requirements.
For synthesis applications, review reaction compatibility, impurity tolerance, handling method, and safety controls according to SDS guidance.
Keep containers sealed and avoid moisture exposure during storage, sampling, transfer, and repacking.
Extended QC & Test Items
Key QC review items may include appearance, identification, purity, water content, color, acidity, residue on evaporation, density, refractive index, and batch documentation.
Product specifications
| Test | Specification | Method |
|---|---|---|
| Appearance | Colorless to pale yellow liquid | Visual |
| Identification | Conforms to agreed specification | GC / Per specification |
| Purity | Per agreed specification | GC |
| Water Content | Per agreed specification | Karl Fischer |
| Color | Per agreed specification | APHA / Per specification |
| Acidity / Alkalinity | Per agreed specification | Titration / Per specification |
| Density | Per agreed specification | Per specification |
| Refractive Index | Per agreed specification | Per specification |
| Residue on Evaporation | Per agreed specification | Per specification |
| Heavy Metals | If required / Per agreed specification | ICP-MS / Per specification |
| Packaging | Drum or customized packing | Reference |
| Documents | COA, SDS/MSDS, TDS available | Reference |
Storage, Shelf Life & Packaging
Storage
Store tightly sealed in a cool, dry, well-ventilated chemical storage area. Protect from moisture, heat, direct sunlight, strong oxidizers, incompatible materials, and contamination.
Shelf Life
24 months under recommended storage conditions in unopened original packaging.
Packaging & Logistics
Standard bulk packing can be supplied in drums or customized industrial packaging according to order quantity, storage requirements, and transport route.
Lifeworth can support COA, SDS/MSDS, TDS, specification sheet, packing list, invoice, and other export-related documents according to shipment requirements.

Supply, Documentation & Customization
Documents & Compliance
COA, SDS/MSDS, and TDS/spec sheet available based on product and market requirements.
Customization & Private Label
Custom packing, private label, and labeling support available depending on product type and order scope.
Commercial Support
Sample, lead time, and incoterm options can be discussed according to destination market and supply plan.
Why Source From Lifeworth
Defined Spec Clarity: We help buyers confirm 2-Pyrrolidone purity, water content, color, residue, acidity, packaging, and document requirements before sampling or bulk order.
Customizable Key Target: Specification and packaging can be reviewed according to NVP production, PVP-related routes, industrial solvent use, polymer systems, or chemical synthesis.
Batch Documentation Support: COA, SDS/MSDS, TDS, specification sheet, and shipment documents can be provided for technical review and import reference.
Export-Ready Bulk Supply: Lifeworth supports sample evaluation, drum packaging, export logistics coordination, and long-term industrial chemical supply communication.

FAQ
What is 2-Pyrrolidone?
2-Pyrrolidone, also known as 2-Pyrrolidinone or alpha-pyrrolidone, is an industrial lactam intermediate and solvent used in NVP production, PVP-related materials, polymer systems, and chemical synthesis.
What is the CAS number of 2-Pyrrolidone?
The CAS number of 2-Pyrrolidone is 616-45-5.
What is 2-Pyrrolidone used for?
It is commonly reviewed for N-vinylpyrrolidone production, PVP-related intermediates, industrial solvent systems, polymer processing, resin applications, and chemical synthesis.
What should buyers check before ordering 2-Pyrrolidone?
Buyers should review purity, water content, color, acidity, residue, packaging, COA, SDS/MSDS, TDS, and application compatibility before confirmation.
Is 2-Pyrrolidone related to NVP and PVP?
Yes. 2-Pyrrolidone is part of the pyrrolidone-series chemical route and is commonly discussed together with NVP, PVP, PVPP, NMP, and NEP in industrial sourcing.
Can Lifeworth provide samples and documents?
Yes. Lifeworth can provide samples and available documents such as COA, SDS/MSDS, TDS, specification sheet, and export documents according to product specification and destination market.
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