23602-85-9 Usage
Description
3,3',4,4'-Terephthaloydiphthalic acid, also known as TPA-DA, is a chemical compound with the molecular formula C16H10O6. It belongs to the family of phthalic acid compounds and is used in the production of high-performance polymers.
Used in Polymer Production:
3,3',4,4'-Terephthaloydiphthalic acid is used as a key intermediate in the synthesis of materials such as liquid crystal polymers, polyester resins, and polyester fibers for their high-performance properties.
Used in Automotive Industry:
3,3',4,4'-Terephthaloydiphthalic acid is used as a component in the production of automotive parts for its excellent mechanical and thermal properties.
Used in Electronics Industry:
3,3',4,4'-Terephthaloydiphthalic acid is used in the manufacturing of electronic components for its high heat resistance and chemical stability.
Used in Construction Industry:
3,3',4,4'-Terephthaloydiphthalic acid is used in the construction of buildings and infrastructure for its durability and strength.
Used in Coatings and Adhesives:
3,3',4,4'-Terephthaloydiphthalic acid is used as a component in the formulation of coatings, adhesives, and specialty materials due to its high heat resistance and chemical stability.
Check Digit Verification of cas no
The CAS Registry Mumber 23602-85-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,6,0 and 2 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 23602-85:
(7*2)+(6*3)+(5*6)+(4*0)+(3*2)+(2*8)+(1*5)=89
89 % 10 = 9
So 23602-85-9 is a valid CAS Registry Number.
23602-85-9Relevant articles and documents
Polymerization grade 4, 4 the pathalic acid radical two neighbouring benzene[...] -the preparation of phthalic anhydride and its products and use
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, (2017/01/23)
The invention discloses polymer-grade diketone dianhydride 4,4'-terephthaloyl diphthalic anhydride, which is as shown in the formula in the specification, and a preparation method thereof. The preparation method comprises the following steps: adopting o-xylene and terephthaloyl chloride (TPC) as the initial materials; and preparing the polymer-grade TDPA (4,4'-Terephthaloyl Diphthalic Anhydride) through a three-step reaction of Friedel-Crafts acylation reaction, oxidization, dehydration-cyclization as well as purification treatment, wherein the total yield of the polymer-grade TDPA is 84%, and the polymer-grade TDPA can be used as monomer of high molecular weight diketone anhydride type polyimide.
