201938-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201938-93-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,9,3 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 201938-93:
(8*2)+(7*0)+(6*1)+(5*9)+(4*3)+(3*8)+(2*9)+(1*3)=124
124 % 10 = 4
So 201938-93-4 is a valid CAS Registry Number.
201938-93-4Relevant articles and documents
Synthesis of 5-substituted 2-nitraminopyrimidines and 2-hydroxyaminopyrimidines
Moskalenko,Shkurko
, p. 843 - 846 (2007/10/03)
2-Nitraminopyrimidine and its 5-R derivatives (R = Me, Cl, NO2, Ph, p-O2NC6H4) have been prepared by cyclization of nitroguanidine with 2-methyl-3-dimethylaminoacrolein or bis(dimethylamino)trimethinium salts, a
