4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride, also known as ethynylphthalic anhydride, is a chemical compound with the formula C20H8O3. It is a white crystalline solid that serves as an important intermediate in the synthesis of high-performance polymers and resins, particularly polyimides, which are widely used across various industries due to their exceptional thermal and mechanical properties.
129808-00-0
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Basic information
- Product Name: 4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride
- Synonyms: 4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride;1,3-Isobenzofurandione, 5,5'-(1,2-ethynediyl)bis-
- CAS NO:129808-00-0
- Molecular Formula: C18H6O6
- Molecular Weight: 318.23664
- EINECS: -0
- Product Categories: N/A
- Mol File: 129808-00-0.mol
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Chemical Properties
- Melting Point: 350 °C(dec.)
- Boiling Point: 633.9±40.0 °C(Predicted)
- Flash Point: N/A
- Appearance: /
- Density: 1.65±0.1 g/cm3(Predicted)
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride(CAS DataBase Reference)
- NIST Chemistry Reference: 4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride(129808-00-0)
- EPA Substance Registry System: 4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride(129808-00-0)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 129808-00-0(Hazardous Substances Data)
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129808-00-0 Usage
Uses
Used in Aerospace Industry:4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride is used as a key component in the production of polyimides for its exceptional thermal stability and resistance to harsh environments, making it suitable for aerospace applications where materials are exposed to extreme conditions.
Used in Electronics Industry:
In the electronics industry, 4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride is used as a precursor for polyimide films, which are employed as insulating layers in microelectronics due to their excellent dielectric properties and ability to withstand high temperatures during manufacturing processes.
Used in Automotive Industry:
4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride is utilized as a material in the development of high-performance resins and composites for automotive applications, where materials are required to have high strength, durability, and resistance to heat and chemicals.
Used as a Crosslinking Agent in Adhesives:
4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride is used as a crosslinking agent in the production of adhesives, enhancing their bonding strength, thermal stability, and resistance to environmental factors.
Used as a Crosslinking Agent in Coatings:
In the coatings industry, 4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride is employed as a crosslinking agent to improve the durability, chemical resistance, and thermal stability of the coatings, making them suitable for various applications, including automotive, aerospace, and industrial coatings.
Used as a Crosslinking Agent in Composite Materials:
4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride is used in the production of composite materials as a crosslinking agent, which contributes to the enhancement of the mechanical properties, thermal stability, and overall performance of the composites, making them suitable for various high-performance applications.
Used in the Development of New Materials:
4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride is a key building block in the development of new materials with enhanced thermal and mechanical properties, contributing to the advancement of material science and the creation of innovative solutions for various industries.
Check Digit Verification of cas no
The CAS Registry Mumber 129808-00-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,8,0 and 8 respectively; the second part has 2 digits, 0 and 0 respectively.Calculate Digit Verification of CAS Registry Number 129808-00:
(8*1)+(7*2)+(6*9)+(5*8)+(4*0)+(3*8)+(2*0)+(1*0)=140
140 % 10 = 0
So 129808-00-0 is a valid CAS Registry Number.
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4,4'-(Ethyne-1,2-diyl)diphthalic Anhydride
