303016-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 303016-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,0,1 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 303016-71:
(8*3)+(7*0)+(6*3)+(5*0)+(4*1)+(3*6)+(2*7)+(1*1)=79
79 % 10 = 9
So 303016-71-9 is a valid CAS Registry Number.
303016-71-9Relevant articles and documents
Improved synthesis of 2-amino-1,2,4-triazolo[1,5-a]pyrimidines
Chernyshev,Sokolov,Taranushich
, p. 1134 - 1137 (2008/02/05)
An improved procedure is suggested for preparing 2-amino-1,2,4-triazolo[1, 5-a]pyrimidines from 3,5-diamino-1,2,4-triazole and unsaturated aromatic ketones, with acetyl protection of the amino group in the step of oxidation of 2-amino-4,7-dihydro-1,2,4-tr
