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Tetraethyl butane-1,1,4,4-tetracarboxylate, also known as tetraethyl succinate or TES, is a chemical compound with the molecular formula C12H20O8. It is a colorless, viscous liquid that is soluble in most organic solvents. TES is synthesized by the esterification of succinic acid with ethanol in the presence of a catalyst, such as sulfuric acid. tetraethyl butane-1,1,4,4-tetracarboxylate is widely used as a plasticizer, particularly in the production of polyvinyl chloride (PVC), due to its ability to increase the flexibility and durability of the material. Additionally, TES is employed as a solvent, a stabilizer, and a chemical intermediate in various industrial applications. Its properties, such as low volatility, high boiling point, and resistance to hydrolysis, make it a suitable candidate for these roles.

4450-43-5

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4450-43-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4450-43-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,5 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4450-43:
(6*4)+(5*4)+(4*5)+(3*0)+(2*4)+(1*3)=75
75 % 10 = 5
So 4450-43-5 is a valid CAS Registry Number.
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