Cas 1174916-26-7,diethyl ((3-fluorophenyl)ethynyl)phosphonate

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Check Digit Verification of cas no

The CAS Registry Mumber 1174916-26-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,4,9,1 and 6 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1174916-26:
(9*1)+(8*1)+(7*7)+(6*4)+(5*9)+(4*1)+(3*6)+(2*2)+(1*6)=167
167 % 10 = 7
So 1174916-26-7 is a valid CAS Registry Number.

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1174916-26-7Relevant articles and documents

Copper-catalyzed decarboxylative C?P cross coupling of arylpropiolic acids with dialkyl hydrazinylphosphonates leading to alkynylphosphonates

Chen, Weizhu,Ma, Dumei,Hu, Gaobo,Hong, Zhuan,Gao, Yuxing,Zhao, Yufen

, p. 1175 - 1181 (2016)

A facile and novel copper-catalyzed decarboxylative coupling of various arylpropiolic acids with readily available dialkyl hydrazinylphosphonates has been developed, providing an attractive synthetic tool for the synthesis of valuable alkynylphosphonates

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1174916-26-7