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Diethyl 2-(diphenylmethylidene)butanedioate is a complex organic compound with the chemical formula C21H20O4. It is a derivative of butanedioic acid, featuring a diphenylmethylidene group (a phenyl group attached to a methylene group) at the 2-position. This molecule is characterized by its conjugated system, which includes the diphenylmethylidene moiety and the butanedioate backbone, endowing it with unique electronic properties. It is a colorless to pale yellow solid and is soluble in organic solvents. diethyl 2-(diphenylmethylidene)butanedioate is primarily used in the synthesis of various pharmaceuticals and agrochemicals due to its potential to form stable chelates with metal ions, which can enhance the stability and bioavailability of these products. Its chemical structure and reactivity make it a valuable intermediate in organic synthesis, particularly in the preparation of complex molecules with potential applications in medicine and chemistry.

6938-64-3

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6938-64-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6938-64-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,3 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6938-64:
(6*6)+(5*9)+(4*3)+(3*8)+(2*6)+(1*4)=133
133 % 10 = 3
So 6938-64-3 is a valid CAS Registry Number.

6938-64-3Relevant academic research and scientific papers

Benzophenone substituted fulgide photochromic compound and preparation method thereof

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Paragraph 0044; 0052-0056; 0061; 0069-0074, (2020/05/02)

The invention discloses a benzophenone substituted fulgide photochromic compound and a preparation method thereof. According to the preparation method, diethyl succinate is used as a core skeleton, 4-pyridine methylene is grafted to the 2-position of diet

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