103964-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103964-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,6 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 103964-31:
(8*1)+(7*0)+(6*3)+(5*9)+(4*6)+(3*4)+(2*3)+(1*1)=114
114 % 10 = 4
So 103964-31-4 is a valid CAS Registry Number.
103964-31-4Relevant articles and documents
Synthesis of Triazolopyrimidine Derivatives
Miyamoto, Yoshiko
, p. 2678 - 2687 (2007/10/02)
Condensation of diaminomethylenehydrazones with ethoxymethylenemalonitrile (2) gave 2,3-dihydrotriazolopyrimidines in moderate to high yields.Of the variously substituted diaminomethylenehydrazones, amino(monosubstituted amino)methylene ones