109968-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109968-81-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,6 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109968-81:
(8*1)+(7*0)+(6*9)+(5*9)+(4*6)+(3*8)+(2*8)+(1*1)=172
172 % 10 = 2
So 109968-81-2 is a valid CAS Registry Number.
109968-81-2Relevant articles and documents
Synthesis of N-alpha-(tosylglycylprolyl)-4-amidinophenylalanine amides as thrombin inhibitors
Voigt,Wagner
, p. 378 - 381 (2007/10/02)
N alpha-(Tosylprolylglycyl)-4-cyanphenylalanine was synthesized by the reaction of an activated ester and a mixed anhydride, respectively, of Tos-Pro-Gly-OH with 4-cyanophenylalanine. N alpha-(Tosylglycylprolyl)-4-cyanophenylalanine was prepared by reacti