165820-47-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 165820-47-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,5,8,2 and 0 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 165820-47:
(8*1)+(7*6)+(6*5)+(5*8)+(4*2)+(3*0)+(2*4)+(1*7)=143
143 % 10 = 3
So 165820-47-3 is a valid CAS Registry Number.
165820-47-3Relevant articles and documents
Synthesis of certain s-triazolopyrimidines structurally related to some chemotherapeutic agents
Bakhite, E. Abdel-Ghafar
, p. 33 - 35 (2007/10/02)
5-Phenyl-s-triazolopyrimidin-7(4H)-one (2) was prepared and chlorinated with phosphorus oxychloride to give 7-chloro-5-phenyl-s-triazolopyrimidine (3).Compound 3 was subjected to some sequence reactions to produce other new s-triazolo
