727662-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 727662-73-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,7,6,6 and 2 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 727662-73:
(8*7)+(7*2)+(6*7)+(5*6)+(4*6)+(3*2)+(2*7)+(1*3)=189
189 % 10 = 9
So 727662-73-9 is a valid CAS Registry Number.
727662-73-9Relevant articles and documents
CuCl-catalyzed one-pot synthesis of 5,6-dihydropyrazolo[1,5-c]quinazolines
Guo, Shenghai,Wang, Jiliang,Li, Yan,Fan, Xuesen
, p. 2383 - 2388 (2014)
A simple and efficient procedure for the preparation of 5,6-dihydropyrazolo[1,5-c]quinazolines via CuCl-catalyzed tandem reaction of 5-(2-bromoaryl)-1H-pyrazoles with aldehydes and aqueous ammonia under nitrogen atmosphere has been developed. The usefulne
