63762-45-8 Usage
Chemical compound
2,5-Thiophenedicarboxylic acid, 3-methyl-, dimethyl ester
Primary use
Reagent or intermediate in organic synthesis
Synthesis
Reaction of 2,5-thiophenedicarboxylic acid and methanol in the presence of a catalyst
Physical appearance
Colorless to pale yellow liquid
Odor
Strong
Commercial use
Not widely used in commercial products
Applications
Research and development in pharmaceuticals, agrochemicals, and other industries
Potential properties
Biological and pharmacological properties for further study and exploration
Check Digit Verification of cas no
The CAS Registry Mumber 63762-45-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,7,6 and 2 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 63762-45:
(7*6)+(6*3)+(5*7)+(4*6)+(3*2)+(2*4)+(1*5)=138
138 % 10 = 8
So 63762-45-8 is a valid CAS Registry Number.
63762-45-8Relevant articles and documents
Synthesis of 2-thiophenecarboxylic and 2,5-thiophenedicarboxylic acid esters via the reaction of thiophenes with the CCl4-ROH reagent in the presence of vanadium, iron, and molybdenum catalysts
Khusnutdinov,Shchadneva,Baiguzina,Mukminov,Mayakova,Smirnov,Dzhemilev
experimental part, p. 471 - 478 (2010/03/31)
2-Thiophenecarboxylic and 2,5-thiohenedicarboxylic acid esters were synthesized via the reaction of thiophene with the CCl4-ROH-catalyst system, with a total yield of 44-85%. A possible reaction scheme includes the successive steps of alkylation of thiophene with carbon tetrachloride, leading to 2-trichloromethylthiophene, and alcoholysis of the product giving the corresponding 2-thiophenecarboxylate. The best catalysts for this reaction are VO(acac)2, Fe(acac)3, and Mo(CO)6.
