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2,2'-dimethylbiphenyl-4,4'-dicarbonitrile, also known as 4,4'-bis(cyanomethyl)-1,1'-biphenyl, is a chemical compound with the formula C18H14N2. It is characterized by its white to light yellow powder form, which is insoluble in water but readily soluble in organic solvents. 2,2'-dimethylbiphenyl-4,4'-dicarbonitrile is recognized for its significant industrial applications, particularly as a monomer in the synthesis of liquid crystal polymers.

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  • 117490-51-4 Structure
  • Basic information

    1. Product Name: 2,2'-dimethylbiphenyl-4,4'-dicarbonitrile
    2. Synonyms:
    3. CAS NO:117490-51-4
    4. Molecular Formula:
    5. Molecular Weight: 232.285
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 117490-51-4.mol
  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: 2,2'-dimethylbiphenyl-4,4'-dicarbonitrile(CAS DataBase Reference)
    10. NIST Chemistry Reference: 2,2'-dimethylbiphenyl-4,4'-dicarbonitrile(117490-51-4)
    11. EPA Substance Registry System: 2,2'-dimethylbiphenyl-4,4'-dicarbonitrile(117490-51-4)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 117490-51-4(Hazardous Substances Data)

117490-51-4 Usage

Uses

Used in Polymer Industry:
2,2'-dimethylbiphenyl-4,4'-dicarbonitrile is utilized as a monomer for the production of liquid crystal polymers, which are valued for their unique properties in various applications. These polymers are known for their high thermal stability, mechanical strength, and chemical resistance, making them suitable for use in electrical insulators, specialty coatings, and high-performance fibers.
Used in Electrical Insulation:
In the electrical industry, 2,2'-dimethylbiphenyl-4,4'-dicarbonitrile contributes to the creation of liquid crystal polymers that serve as effective electrical insulators. These polymers offer excellent dielectric properties, ensuring the safe and efficient operation of electrical components and systems.
Used in Specialty Coatings:
2,2'-dimethylbiphenyl-4,4'-dicarbonitrile also finds use in the formulation of specialty coatings that leverage the properties of liquid crystal polymers. These coatings are designed for specific applications requiring high durability, temperature resistance, and chemical inertness.
Used in High-Performance Fibers:
2,2'-dimethylbiphenyl-4,4'-dicarbonitrile is integral to the development of high-performance fibers that exhibit superior strength and flexibility. These fibers are employed in various industries, including aerospace, automotive, and sports equipment manufacturing, where high-strength materials are essential.

Check Digit Verification of cas no

The CAS Registry Mumber 117490-51-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,4,9 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117490-51:
(8*1)+(7*1)+(6*7)+(5*4)+(4*9)+(3*0)+(2*5)+(1*1)=124
124 % 10 = 4
So 117490-51-4 is a valid CAS Registry Number.

117490-51-4Downstream Products

117490-51-4Relevant articles and documents

Dicyanoaromatic radical anions as mixed valence species

Moneo, Alvaro,Carvalho, M. Fernanda N. N.,Telo, Joao P.

, p. 559 - 565 (2012)

The reduction of nine symmetric dicyanoaromatic radical anions by sodium amalgam in the presence of cryptand[2.2.2] was studied using cyclic voltammetry and using optical and electron paramagnetic resonance (EPR) spectroscopies in two aprotic solvents. Al

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