58668-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 58668-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,6,6 and 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 58668-16:
(7*5)+(6*8)+(5*6)+(4*6)+(3*8)+(2*1)+(1*6)=169
169 % 10 = 9
So 58668-16-9 is a valid CAS Registry Number.
58668-16-9Relevant articles and documents
Pyrimidones. 2. Synthesis and Reactions of 2-Chloropyrimidines
Coppola, Gary M.,Hardtmann, Goetz E.,Huegi, Bruno S.
, p. 1479 - 1482 (2007/10/02)
The treatment of 1-alkyl-5-aryl and 1-alkyl-4,5-diaryl-2-(1H)pyrimidones with phosphorus oxychloride and phosphorus pentachloride resulted in chlorination and dealkylation to furnish 2-chloro-5-aryl (or 4,5-diaryl)pyrimidines.These chloropyrimidines were
