99922-17-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99922-17-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,2 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 99922-17:
(7*9)+(6*9)+(5*9)+(4*2)+(3*2)+(2*1)+(1*7)=185
185 % 10 = 5
So 99922-17-5 is a valid CAS Registry Number.
99922-17-5Relevant articles and documents
Iminium Ion Mediated Cyclizations with 4-Aryl-1,4-dihydropyridines. Bridging with Thiophene and Furan
Hartman, George D.,Halczenko, Wasyl,Phillips, Brian T.
, p. 142 - 148 (1986)
Treatment of -, phenyl-, - and -1,4-dihydropyridines with aluminum chloride afforded products derived from intramolecular trapping of the dihydropyridine/iminium ion by the
