91779-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91779-22-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,7 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91779-22:
(7*9)+(6*1)+(5*7)+(4*7)+(3*9)+(2*2)+(1*2)=165
165 % 10 = 5
So 91779-22-5 is a valid CAS Registry Number.
91779-22-5Relevant academic research and scientific papers
STRUCTURE-COLOUR REALATIONSHIP OF SOME NEW N-ARYLPYRIDINIUM HEMICYANINE DYES
Hutchings, Michael G.
, p. 2061 - 2068 (2007/10/02)
N-aryl derivatives of 4-(p-dimethylamino)pyridine are novel examples of donor-acceptor dyes.Para-substituents in the N-aryl group influence the spectra, such that the more electron-withdrawing lead to more bathochromic shifts.However, a 2-nitro-substituen
