26663-57-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26663-57-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,6,6 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 26663-57:
(7*2)+(6*6)+(5*6)+(4*6)+(3*3)+(2*5)+(1*7)=130
130 % 10 = 0
So 26663-57-0 is a valid CAS Registry Number.
26663-57-0Relevant articles and documents
Synthesis of N-aryl-2-substituted tetrahydrobenzimidazoles via direct N-arylation
Li, Mei-Ying,Liu, He,Zhong, Bo-Hua
, p. 1001 - 1009 (2007)
A series of novel N-aryl-2-substituted tetrahydrobenzimidazoles has been synthesized via direct N-arylation of 2-substituted tetrahydrobenzimidazoles, which was accomplished by a medium aryl electrophile, 4- methylsulfonylfluorobenze, in the presence of 3