1623-91-2 Usage
Description
4,4'-diphenoxydiphenylsulfone, an organic compound with the chemical formula C24H18O4S, is a type of sulfone known for its exceptional thermal stability, chemical resistance, and mechanical properties. It is widely utilized in the production of high-performance polymers such as polyethersulfone and polysulfone, and is favored for its high transparency, making it suitable for various applications across different industries.
Uses
Used in Aerospace Industry:
4,4'-diphenoxydiphenylsulfone is used as a high-performance material for [its excellent thermal stability and mechanical properties], catering to the demanding requirements of aerospace applications where materials must withstand extreme conditions.
Used in Automotive Industry:
In the automotive sector, 4,4'-diphenoxydiphenylsulfone is employed as a component in high-performance polymers for [its ability to maintain structural integrity and resist chemical degradation], ensuring the longevity and reliability of automotive components.
Used in Electronics Industry:
4,4'-diphenoxydiphenylsulfone is utilized as a material in engineering thermoplastics for [its heat resistance and chemical stability], which are crucial for components that must operate reliably in various environmental conditions within electronic devices.
Used as a Flame Retardant in Plastics:
4,4'-diphenoxydiphenylsulfone serves as a flame retardant in plastics for [its inherent properties that slow down the spread of fire], enhancing the safety of plastic materials used in various applications.
Used in Optical Applications:
Due to its high transparency, 4,4'-diphenoxydiphenylsulfone is used in optical applications for [its ability to maintain clarity and light transmission], making it ideal for components in optical devices and systems.
Check Digit Verification of cas no
The CAS Registry Mumber 1623-91-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,2 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1623-91:
(6*1)+(5*6)+(4*2)+(3*3)+(2*9)+(1*1)=72
72 % 10 = 2
So 1623-91-2 is a valid CAS Registry Number.
1623-91-2Relevant articles and documents
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Reichle,W.T.
, p. 4254 - 4257 (1972)
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Hydroxybenzophenone-based stabilizers and polymers end-capped with the same
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Paragraph 0118; 0119, (2017/09/08)
The invention relates to hydroxybenzophenone-based compounds of formula (I) that are used to improve UV, thermal, and thereto-oxidative stability of high performance aromatic polymers in a blend or as end-cappers of the same polymers.
N-ALKYL-4-(N',N'-DIALKYLAMINO)PYRIDINIUM SALTS: THERMALLY STABLE PHASE TRANSFER CATALYSTS FOR NUCLEOPHILIC AROMATIC DISPLACEMENT
Brunelle, D. J.,Singleton, Daniel A.
, p. 3383 - 3386 (2007/10/02)
N-Alkyl salts of 4-dialkylaminopyridines are effective phase transfer catalysts which are up to 100 times more stable than tetrabutylammonium bromide to conditions encountered in nucleophilic aromatic substitution reactions.These salts are thermally stable to over 300 deg C, and promote reactions in non-polar solvents (or in the absence of solvent) at temperatures as high as 200 deg C.
