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1-Methyl-2-Pyrrolidinone CAS 872-50-4

Molecular Formula: C5H9NO

Formula Weight: 99.13

ZSpharmac: 1-Methyl-2-Pyrrolidinone Supplier

Product Name: 1-Methyl-2-Pyrrolidinone
CAS No: 872-50-4
Purity: 99%

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Basic Info

Product Name:1-Methyl-2-Pyrrolidinone
Other Names:N-methyl Pyrrolidone
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Colorless Liquid
EINECS No.:212-828-1
Storage:Store at +5°C to +30°C.
Provide:1-Methyl-2-Pyrrolidinone MSDS;
1-Methyl-2-Pyrrolidinone COA

What is 1-Methyl-2-Pyrrolidinone?

N-Methylpyrrolidinone soluble in ether, acetone In addition to numerous all-natural solvents such as esters, halogenated hydrocarbons, aromatics, as well as extra, basically totally mixed with all solvents, boiling point 204 ℃, flash point 91 ℃,solid hygroscopicity, safe chemical properties, no rust to carbon steel and aluminum, somewhat severe to copper corrosive. It has the advantages of reduced thickness, great chemical safety and additionally thermal protection, high polarity, low volatility, endless miscibility with water as well as numerous natural solvents, and so on. This item is a micro-drug, the allowable restriction focus air-borne is 100PPM.

1-Methyl-2-Pyrrolidinone Property

Melting point -24 °C (lit.)
Boiling point 202 °C (lit.) 81-82 °C/10 mmHg (lit.)
density 1.028 g/mL at 25 °C (lit.)
vapor density 3.4 (vs air)
vapor pressure 0.29 mm Hg ( 20 °C)
refractive index n20/D 1.479
Fp 187 °F
storage temp. Store at +5°C to +30°C.
solubility ethanol: miscible0.1ML/mL, clear, colorless (10%, v/v)
form Liquid
color ≤20(APHA)
OdorSlight amine odor
PH8.5-10.0 (100g/l, H2O, 20℃)
PH Range7.7 – 8.0
explosive limit1.3-9.5%(V)
Water Solubility >=10 g/100 mL at 20 ºC


1-Methyl-2-Pyrrolidinone Uses

1. Industrial high quality: lubricating oil refining, lubricating oil antifreeze, synthetic gas desulfurization, digital insulation products, farming herbicides, chemical devices, PVC tail gas healing, ingredients as well as dispersants for the production of high-quality treatments, inks, and additionally pigments. For instance, it is utilized to draw out aromatics in lubricating oil to accomplish the feature of refining lubricating oil; due to the fact that 1-Methyl-2-Pyrrolidinone has a large solubility in material, it can be made use of as a solvent for material processing to make layers, flooring paints, varnishes, and composite finishings. Film forming, integrated circuit enameled cable television insulation materials, fiber products as well as also adhesives and also other things.
2. Normal top quality: Removal and likewise healing of conventional all-natural raw materials, such as acetylene emphasis as well as extraction of butadiene, isoprene, aromatics, and so on. It can be made use of as a solvent for recouping acetylene from gas or light naphtha thermal cracking gas, as well as the pureness of redeemed as well as concentrated acetylene can reach 99.7%; as an elimination representative for separating along with redeeming high-purity butadiene from split C4 hydrocarbons, the healing rate can get to 97% %, the recovery of butadiene has a purity of 99.7%. It is made use of as an extractant for recouping high-purity isoprene in the fracturing of C5 hydrocarbons. The recuperation of isoprene reaches a purity of 99%. With reduced vapor pressure, the loss price of removal representative is lowered as well as the recovery rate of aromatics is high during the procedure.
3. Reagent quality: degreasing, degreasing, dewaxing, polishing, corrosion evasion, paint removal, and so on for industries such as incorporated circuits and hard disks that need rigorous control of steel ions as well as pieces, such as photoresist eliminator, IC semiconductor market Cleansing of precision tools, LCD liquid crystal materials, PCB published circuit card, along with hard disks; and also solvents produced in the pharmaceutical field such as man-made kidney practical membrane layer liquid and seawater desalination membrane layer liquid.

1-Methyl-2-Pyrrolidinone Production Method

There are presently three manufacturing procedures for 1-Methyl-2-Pyrrolidinone, one is the pyrrolidone method using pyrrolidone and also halogenated alkanes as basic materials, the various other is the synthesis of 1-Methyl-2-Pyrrolidinone under stimulant conditions, and also the third is γ-butyrol GBL technique with ester and also blended methylamine or monomethylamine as raw materials. Today, the combined GBL method of γ-butyrolactone and also monomethylamine aqueous solution is primarily made use of. The GBL approach is to blend γ-butyrolactone and monomethylamine liquid remedy in a tubular mixer, pre-heat it with a tubular preheater, and also warm it in the column at a heat of 260-290 ° C and a stress of 7.5-8.5 Mpa. 1.5-2.0 hrs of reaction in a tubular reactor.

1-Methyl-2-Pyrrolidinone Development Status

my nation’s 1-Methyl-2-Pyrrolidinone has decades of advancement history. Given that 2008, my nation’s NMP market has experienced eruptive development. Driven by its downstream items, a multitude of tools have actually shown up in a short amount of time, driving my country’s NMP manufacturing Rapid development in size. The advancement of these years has made my N-methylpyrrolidone NMP manufacturing range rank initially worldwide, and also the items are exported to Japan, South Korea, The United States And Canada, Europe, the Middle East and other areas.

According to the study, in 2021, China’s NMP output went beyond 500,000 tons, with no imports and almost 100,000 lots of exports. China’s obvious usage of NMP was around 400,000 lots. In the past few years, China’s NMP usage has shown a fast development of more than 30%, and it is also a product with a faster development rate in China’s chemical industry. Under such an advancement trend, the market share of NMP in my nation will certainly remain to grow rapidly, and also the future usage will certainly be significant.

The manufacturing procedure of 1-Methyl-2-Pyrrolidinone has actually additionally been discussed over. At present, the majority of the production in my nation is still GBL, and also the manufacturing of GBL is based on BDO as the raw material. The upstream items of BDO can be traced back to maleic anhydride and n-butane, as well as n-butane is presently Products that are popular as well as concerned about product chain expansions. If the venture can have the supporting production from n-butane to downstream items, after that N-methylpyrrolidone NMP will have the advantage of the overall industrial chain.

About Products:
If you need 1-Methyl-2-Pyrrolidinone as a cosmetic raw material, please contact our service staff directly, and we will provide you with high-quality products at the best price.
As an experienced 1-Methyl-2-Pyrrolidinone manufacturer and supplier, ZSpharmac will provide 1-Methyl-2-Pyrrolidinone raw materials for customers all over the world for a long time.
Over the years, the company has been adhering to the spirit of “integrity management, strict quality control, customer first”, and has won unanimous praise from domestic and foreign customers.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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