Sign in    |    Register
Changxin Chemical Science-Tech Co., Ltd.
Changxin Chemical Science-Tech Co., Ltd.
  •  Verified Enterprises
  • Company Type:  Production
  • Country:  CHINA
  • Contact:  -
  • Mobile:  0534-3730988
  • Tel:  0534-3730988
  • Website:
  • Email:
  • Product Search
    Product details
    N-methyl-pyrrolidone (NMP)


    CAS No.:872-50-4      Formula:

    Inquiry   Collection

    Basic Information
    CAS No.:
    N-methyl-pyrrolidin-2-one; 2-Pyrrolidinone, 1-methyl-; n-methyl-2-pyrrolidinone; 1-Methyl-2-pyrrolidinone; n-methyl-6-oxo-1,6-dihydropyridine-3-carboxamide;
    Appearance & Character:
    A colorless or yellowish liquid with an amine odor.
    1.028 g/mL at 25 °C(lit.)
    Melting Point:
    −24 °C(lit.)
    Boiling Point:
    202 °C(lit.)
    Flash Point:
    187 °F
    Storage Conditions:
    Packing complete, light light, warehouse ventilation, away from the open flame, high temperature, and the oxidant separate storage
    Detailed Description
     Fine chemicals
    N-methyl-pyrrolidone (NMP)
    Chemical name: N-methy-lpyrrolidone;1- methyl-2-pyrrolidone;
    CAS NO.: 872-50-4
    Molecular formula: C5H9NO
    Character: colorless transparent liquid; be hygroscopic and miscible with water in any ratio, and also miscible with alcohol, ether, acetone, aromatic hydrocarbons and other solvents.
    1. Micro-electronic grade: It is applicable to LCD, semiconductor, circuit boards, carbon nanotubes and other high-end microelectronic industry.
    2.Electronic grade: It is applicable to such industries as aramid fiber, PPS, ultrafiltration membrane, OLED plate photoetching, glue etching and other industries.
    3.Battery grade:It is applicable to lithium batteries and other industries.
    4.Industrial grade: It is applicable to the acetylene concentration, butadiene extraction,electrical insulating materials, high-grade paints, pesticide adjuvants, inks, paints, indus-trial cleaning agent and other industries.
    Specification and indicators
    ItemsMicro-electronic gradeElectronic gradeBattery
    Industrial grade
    Purity (GC, wt%)≥99.95≥99.9≥99.9≥99.8
    Water (K.F.,ppm)≤100≤200≤200≤500
    Chroma (Hazen, APHA)≤10≤10≤10≤30
    10% solution pH value6-96-96-96.5-10
    free amine(ppm)//≤20/
    total amine (based on MMA, ppm)≤15≤20≤30/
    NO3- (ppm)≤0.01≤0.01//
    Metal ion(ppb)    K、Na、Ca、Zn、Mg、Cd、Pb、Cr、Hg、As、Ni、Sn、B、Si、Mn、Fe、Cu、Ag、Ti、Al、Li、Co、Au≤10≤20//

    γ-butyrolactone (GBL)
    Chemical name:  1,4-butyrolactone; γ-butyrolactone    
    CAS NO.96-48-0
    Molecular formula:C4H6O2
    Character: colorless and transparent oily liquid with odor similar to acetone; be miscible with water, acetone, carbon tetrachloride and ethanol, and can be decomposed in hot lye with aromatic odor.
     r-butyrolactone is an important organic chemical raw material, which is widely used in the pharmaceutical, pesticide, petrochemical and
    other industries.
        1. It can be used to synthesize pyrrolidone products;
        2. It can be used as a pharmaceutical intermediate, such as Cyclopropylamine and vitamin;
        3. It can be used as a pesticide intermediate, such as herbicide and plant growth regulator;
        4. It can be used for alkenes, alkynes extraction agent, absorbent and dispersing agent;
        5. It can be used to synthesize resin as an antioxidant, plasticizer, dispersing agent, fixing agent and solvent;
        6. It can be used to synthesize fiber spinning solvent, coagulant, dyeing assistant and antistatic agent;
        7. It can be used as a raw material of color film former, electrolyte, capacitor and ink lubricant.
    Specification and indicators
    ltemslndustrial gradeElectronic gradeMicro-electronic grade
    Purity (GC,wt%)≥99.5%≥99.8%99.90%
    Water (K.F.,wt%)≤0.05%≤0.03%≤0.02%
    Chroma (Hazen,APHA)≤10#≤10#≤10#
    1,4 butanediol(wt%)≤0.05≤0.03≤0.03
     acid number(wt%)≤0.05≤0.03≤0.03
    Density (@20℃,g/ml)1.125~1.1351.125~1.1351.125~1.135
    Refractive index (@20℃)1.435~1.4381.435~1.4381.435~1.438

    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.
    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
    ltemsExcellent gradeFirst 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


    Contact person: Ms. Wang
    Telephone: 18006408869 (same as WeChat)
    Mail box: 2851323898

    Online Inquiry