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Tetramethyl cyclopropane-1,1,2,2-tetracarboxylate (TMCP) is a cyclic organic compound with the chemical formula C9H12O8. It is a white crystalline solid that is widely used as a plasticizer in the production of various polymers, such as polyvinyl chloride (PVC) and cellulose esters. TMCP is known for its excellent low-temperature flexibility, resistance to extraction, and low volatility, making it a preferred choice in applications where these properties are crucial. It is also used in the production of films, sheets, and coatings, as well as in adhesives and sealants. The compound is synthesized through a multi-step process involving the reaction of maleic anhydride with methanol, followed by a cyclization step. Due to its stability and performance, TMCP is a key component in many industrial applications, contributing to the flexibility and durability of finished products.

7605-66-5

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7605-66-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7605-66-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,0 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 7605-66:
(6*7)+(5*6)+(4*0)+(3*5)+(2*6)+(1*6)=105
105 % 10 = 5
So 7605-66-5 is a valid CAS Registry Number.

7605-66-5Relevant academic research and scientific papers

Lewis acid-mediated reactions of donor-acceptor cyclopropanes with diazo esters

Novikov,Borisov,Tomilov, Yu. V.

, p. 265 - 273 (2018/05/15)

The reactions of diazo esters with 2-arylcyclopropane-1,1-dicarboxylates, the represen- tatives of donor-acceptor cyclopropanes (DACs), mediated by Sc(OTf)3, SnCl4, and GaCl3 proceeded with nitrogen elimination to give the

CATHODIC SYNTHESIS OF ESTERS OF 1,1,2,2-CYCLOALKANETETRACARBOXYLIC ACIDS DERIVED FROM 1,1,2,2-ETHANE- OR ETHYLENECARBOXYLATE ESTERS

Vasil'ev, A. A.,Zvolinskii, V. I.,Petrosyan, V. A.

, p. 180 - 183 (2007/10/02)

The cathodic electrolysis of esters of 1,1,2,2-ethane- or ethylenetetracarboxylic acids in the presence of dihaloalkanes leads to esters of 1,1,2,2-cycloalkanetetracarboxylic acids. Keywords: acyclic compounds, esters, alkyl bromides, electrochemical synthesis, electrolytic reduction.

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