Buy Gamma-Butyrolactam (2-Pyrrolidinone) CAS 616-45-5 | UAB An Group Export

Buy Gamma-Butyrolactam (2-Pyrrolidinone) CAS 616-45-5 | UAB An Group Export
Gamma-Butyrolactam, also known as 2-Pyrrolidinone, is a 
versatile high-performance cyclic amide solvent and chemical 
intermediate with broad applications across pharmaceutical 
manufacturing, polymer synthesis, agrochemical formulation, 
and industrial chemical processing. Its exceptional solvency 
power, high boiling point, and chemical stability make it 
one of the most reliable and widely used lactam compounds 
in professional industrial and laboratory environments.

UAB An Group Export supplies industrial-grade 
Gamma-Butyrolactam (2-Pyrrolidinone) to verified buyers 
worldwide with full documentation, secure packaging, and 
reliable international delivery.

Chemical Properties & Technical Specifications

CAS Number: 616-45-5
Other Names: 2-Pyrrolidinone, alpha-Pyrrolidinone, 
             Butyrolactam, 2-Pyrrolidone
Molecular Formula: C4H7NO
Molar Mass: 85.10 g/mol
Appearance: Colourless to pale yellow liquid
Odour: Mild characteristic odour
Density: 1.107 g/cm³ at 20°C
Boiling Point: 245°C (473°F)
Melting Point: 25°C (77°F)
Flash Point: 129°C (264°F)
Vapour Pressure: 0.12 hPa at 20°C
Refractive Index: 1.486 – 1.488
Solubility: Fully miscible with water, alcohols, 
            ketones, and most organic solvents
Log Pow (octanol/water): -0.38
Purity: ≥99.0% (industrial grade)
UN Number: Not classified as dangerous goods 
           for standard transport

Primary Industrial Applications

Gamma-Butyrolactam (2-Pyrrolidinone) is a highly versatile 
compound with established applications across multiple 
industrial and research sectors:

1. Pharmaceutical Manufacturing
2-Pyrrolidinone is widely used as a solvent and intermediate 
in pharmaceutical synthesis. Its low toxicity profile, 
excellent solvency for active pharmaceutical ingredients 
(APIs), and compatibility with biological systems make it 
a preferred solvent in drug formulation and synthesis 
processes. It serves as a direct precursor to N-methyl-2-
pyrrolidinone (NMP) and other important pharmaceutical 
building blocks.

2. Polymer and Nylon Synthesis
Gamma-Butyrolactam is a key monomer and intermediate in 
the production of Nylon-4 and related polyamide systems. 
Its ring-opening polymerisation under controlled conditions 
yields high-performance polymer materials with excellent 
mechanical and thermal properties used in engineering 
plastics and specialty fibre production.

3. Agrochemical Formulation
2-Pyrrolidinone is used as a carrier solvent and 
co-solvent in pesticide, herbicide, and fungicide 
formulations. Its ability to solubilise active 
agrochemical ingredients while maintaining low 
phytotoxicity makes it particularly valuable in 
precision agriculture applications.

4. Industrial Solvent Applications
Due to its high boiling point (245°C) and broad 
solvency across organic and inorganic compounds, 
2-Pyrrolidinone is used in high-temperature industrial 
processes including polymer dissolution, specialty 
coating formulation, and chemical extraction operations 
where conventional lower-boiling solvents are unsuitable.

5. Electronics and Semiconductor Industry
2-Pyrrolidinone is used in the electronics industry 
as a cleaning solvent for printed circuit boards (PCBs), 
semiconductor wafer processing, and specialty coating 
removal applications. Its ability to dissolve photoresists 
and polymer films without damaging sensitive electronic 
components makes it valuable in precision electronics 
manufacturing.

6. Ink and Coating Formulation
Gamma-Butyrolactam is used as a solvent and viscosity 
modifier in specialty ink formulations, coatings, and 
adhesive systems. Its high boiling point contributes 
to controlled drying characteristics in precision 
coating applications.

7. Chemical Synthesis Intermediate
2-Pyrrolidinone serves as a versatile building block 
in organic synthesis, including the production of 
N-vinyl-2-pyrrolidinone (NVP), N-methyl-2-pyrrolidinone 
(NMP), and a range of pharmaceutical and agrochemical 
intermediates.

Why Choose UAB An Group Export for 
Gamma-Butyrolactam Supply

UAB An Group Export supplies Gamma-Butyrolactam 
(2-Pyrrolidinone) to verified industrial and laboratory 
buyers with the following guarantees:

- Purity: ≥99.0% confirmed by GC analysis
- Full Certificate of Analysis (CoA) with every shipment
- Safety Data Sheet (SDS) compliant with GHS standards
- Secure, UN-compliant packaging for international shipment
- Reliable international freight and courier network
- Responsive pre-sale and post-sale technical support
- Competitive bulk pricing for ongoing supply contracts

Handling and Storage

Gamma-Butyrolactam should be stored in tightly sealed 
containers away from heat, direct sunlight, and strong 
oxidising agents. Appropriate PPE including 
chemical-resistant gloves and eye protection should 
be worn when handling. Note that 2-Pyrrolidinone has 
a melting point of approximately 25°C — it may solidify 
at room temperature in cooler environments. Gentle 
warming restores it to liquid state without affecting 
product quality. Store at temperatures between 5°C 
and 30°C in a well-ventilated area.

Order Information

Gamma-Butyrolactam (2-Pyrrolidinone) is available 
from UAB An Group Export in the following configurations:

- Sample orders: 1L and 5L units
- Bulk orders: 20L, 100L, and pallet quantities
- Custom volumes available on request for ongoing 
  supply contracts

Contact us at info@angroupexport.com or via WhatsApp 
at +1 (350) 210-1380 to request a quote or discuss 
your supply requirements.