PRODUCTS > 2-Pyrrolidinone (α-PYR)
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2-Pyrrolidinone (α-PYR)

α-pyrrolidinone (α-p)
Chemical name: α-pyrrolidone, 2 - pyrrolidone, 4-- butyrolactam
CAS No: 616-45-5
Molecular formula:C4H7NO
Character: colorless or slightly yellow transparent liquid or crystal with slight ammonia smell; be miscible with water, alcohol, ether, chloroform, benzene, ethyl acetate, carbon disulfide and most organic solvents in any ratio; and be insoluble in petroleum ether.

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Application:
α-pyrrolidone is an important chemical raw material and high-polarity organic solvent. It is widely used in the pharmaceutical, textile, cosmetic, solvent, electronic cleaning and other industries.  
 1. As an organic synthetic raw material and intermediate, it is mainly used polyvinylpyrrolidone, piracetam, γ-aminobutyric acid, nylon -4, polyamide fibers etc.   
 2. As a solvent, it is mainly used in synthetic resins, pesticides, plasticizers, coloring agent, floor polishes, polyhydric alcohols, printing inks, coatings, iodine, electronics cleaning etc.

Specification and indicators

                 ltems                                Excellent grade                                First grade              
Purity (GC，wt%)≥99.5%≥99.0%
Water content (K.F.,wt%)≤0.1%≤0.1%
Chroma (Hazen，APHA)≤10#≤20#
Density (@20℃，g/ml)1.107～1.1151.107～1.115
Refractive index (@20℃)1.482～1.4861.482～1.486


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