99902-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99902-05-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,0 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99902-05:
(7*9)+(6*9)+(5*9)+(4*0)+(3*2)+(2*0)+(1*5)=173
173 % 10 = 3
So 99902-05-3 is a valid CAS Registry Number.
99902-05-3Relevant academic research and scientific papers
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 (2007/10/02)
Treatment of -, phenyl-, - and -1,4-dihydropyridines with aluminum chloride afforded products derived from intramolecular trapping of the dihydropyridine/iminium ion by the
