Cas 1240179-34-3,4-phenyl-2,6-bis[4-(4-nitrilephenoxy)phenyl]pyridine

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Check Digit Verification of cas no

The CAS Registry Mumber 1240179-34-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,1,7 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1240179-34:
(9*1)+(8*2)+(7*4)+(6*0)+(5*1)+(4*7)+(3*9)+(2*3)+(1*4)=123
123 % 10 = 3
So 1240179-34-3 is a valid CAS Registry Number.

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1240179-32-1 4-phenyl-2,6-bis[4-(4-carboxyphenoxy)phenyl]pyridine

1240179-34-3Relevant academic research and scientific papers

Synthesis of a new aromatic diacid containing pyridine ring and related polybenzimidazole

Ma, Tao,Li, Yan Feng,Zhang, Shu Jiang,Yang, Feng Chun,Gong, Chen Liang,Zhao, Jiu Jiang

, p. 976 - 978 (2010)

A new aromatic diacid monomer containing pyridine unit, 4-phenyl-2,6-bis[4-(4-carboxyphenoxy) phenyl] pyridine 3, was successfully synthesized in three steps, starting from 4-hydroxyacetophenone. The corresponding pyridine-containing polybenzimidazole was

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