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Thiophene, 3,3'-(1,2-ethenediyl)bis- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

117439-53-9

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117439-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117439-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,4,3 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 117439-53:
(8*1)+(7*1)+(6*7)+(5*4)+(4*3)+(3*9)+(2*5)+(1*3)=129
129 % 10 = 9
So 117439-53-9 is a valid CAS Registry Number.

117439-53-9Downstream Products

117439-53-9Relevant academic research and scientific papers

THERMOLYSIS OF SODIUM SALTS OF TOSYLHYDRAZONES OF SOME HETEROCYCLIC ALDEHYDES IN THE PRESENCE OF SILVER CHROMATE: 1,3 NC MIGRATION OF TOSYL GROUP

Saito, Katsuhiro,Ishihara, Hiraku

, p. 1891 - 1898 (1987)

The thermal decompositions of sodium salts of tosylhydrazones of furfural, thiophene-2-aldehyde, 1-methylpyrrole-2-aldehyde, and pyridine-2-aldehyde in the presence of silver chromate gave 2-furyl(p-toluenesulfonyl)methane, thiophene-2-(p-toluenesulfonyl)methane, 1-methylpyrrole-2-(p-toluenesulfonyl)methane, and pyridine-2-(p-toluenesulfonyl)methane, respectively, via 1,3 NC migration of tosyl group.The same type of reactions with sodium salts of tosylhydrazones of thiophene-3-aldehyde, pyridine-3-aldehyde, and pyridine-4-aldehyde also afforded the corresponding p-toluenesulfonylmethanes but the yields were slightly lower comparing to the above cases.

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