134834-74-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134834-74-5 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 4 respectively.
Calculate Digit Verification of CAS Registry Number 134834-74:
(8*1)+(7*3)+(6*4)+(5*8)+(4*3)+(3*4)+(2*7)+(1*4)=135
135 % 10 = 5
So 134834-74-5 is a valid CAS Registry Number.
134834-74-5Relevant articles and documents
Stable 1,2,4-triazolo[1,5-a]-pyrimidinium salts
Kolos,Orlov,Paponov,Shishkin,Baumer,Kvashnitskaya
, p. 708 - 715 (1999)
2,3-Diamino-5,7-diaryl-1,2,4-triazolo[1,5-a]pyrimidinium salts have been synthesized by the cyclocondensation of 3,4,5-triamino-1,2,4-triazole with 1,3-diaryl-2,3-propanes, and their structures and chemical properties have been studied. 1999 KluwerAcademi