17658-06-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17658-06-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,6,5 and 8 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 17658-06:
(7*1)+(6*7)+(5*6)+(4*5)+(3*8)+(2*0)+(1*6)=129
129 % 10 = 9
So 17658-06-9 is a valid CAS Registry Number.
InChI:InChI=1/C29H21NO/c31-27-18-16-26(17-19-27)30-28(23-12-6-2-7-13-23)20-25(22-10-4-1-5-11-22)21-29(30)24-14-8-3-9-15-24/h1-21H
17658-06-9Relevant articles and documents
Experimental and computational studies on the solvatochromism and thermochromism of 4-pyridiniophenolates
Morley, John O.,Padfield, James
, p. 1698 - 1707 (2002)
The observed solvatochromism of the betaine 4-(2,4,6-triphenyl-1-pyridinio)phenolate (2a) in solvents of low and very high relative permittivity has been assessed both experimentally and theoretically using molecular orbital methods. The PM3/COSMO method