221013-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221013-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,0,1 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 221013-91:
(8*2)+(7*2)+(6*1)+(5*0)+(4*1)+(3*3)+(2*9)+(1*1)=68
68 % 10 = 8
So 221013-91-8 is a valid CAS Registry Number.
221013-91-8Relevant academic research and scientific papers
Synthesis of 2-(alkylamino)benzimidazoles
Perkins, James J.,Zartman, Amy E.,Meissner, Robert S.
, p. 1103 - 1106 (2007/10/03)
A general and highly convenient procedure for the synthesis of 2- (alkylamino)benzimidazoles has been developed and a variety of analogs have been efficiently prepared. Included is a dipeptide mimetic in which the guanidine group of an arginine residue ha
