103912-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103912-90-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,1 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 103912-90:
(8*1)+(7*0)+(6*3)+(5*9)+(4*1)+(3*2)+(2*9)+(1*0)=99
99 % 10 = 9
So 103912-90-9 is a valid CAS Registry Number.
103912-90-9Relevant articles and documents
SYNTHESIS OF 5-DIAZOMETHYL SUBSTITUTED v-TRIAZOLOPYRIMIDINES
L'abbe, Gerrit,Godts, Francoise,Toppet, Suzanne
, p. 441 - 448 (2007/10/02)
The condensation of 5-azido-4-cyano-1-substituted-1,2,3-triazoles with active methylene nitriles in the presence of a strong base yields the title compounds 6 which exist in equilibrium with the tricyclic systems 5.The equilibrium position is shifted towa