138851-61-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138851-61-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,5 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138851-61:
(8*1)+(7*3)+(6*8)+(5*8)+(4*5)+(3*1)+(2*6)+(1*1)=153
153 % 10 = 3
So 138851-61-3 is a valid CAS Registry Number.
138851-61-3Relevant articles and documents
Synthesis of cyclic guanidines: 2-arylamino-1,4,5,6-tetrahydropyrimidines
Shaw, Julian W.,Grayson, David H.,Rozas, Isabel
, p. 161 - 174 (2014/03/21)
Considering the biological and chemical relevance of guanidine containing derivatives, we have devised a novel and efficient two-step synthesis of 2-arylamino-1,4,5,6-tetrahydropyrimidines. We have found that the coupling of aryl bromides with 2-aminopyri
