134834-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134834-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,3 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 134834-72:
(8*1)+(7*3)+(6*4)+(5*8)+(4*3)+(3*4)+(2*7)+(1*2)=133
133 % 10 = 3
So 134834-72-3 is a valid CAS Registry Number.
134834-72-3Relevant articles and documents
CYCLOCONDENSATION OF CHALCONES WITH DI- AND TRIAMINO-1,2,4-TRIAZOLES
Desenko, S. M.,Kolos, N. N.,Tueni, M.,Orlov, V. D.
, p. 782 - 784 (1990)
We have carried out the synthesis of 2-amino-5,7-diaryl-1,2,4-triazolopyrimidines from chalcones and 3,4,5-triamino-1,2,4-triazole and synthesized them independently via the 4,7-dihydro derivatives.The course and mechanism of the cyclocondensation