256933-02-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256933-02-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,9,3 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 256933-02:
(8*2)+(7*5)+(6*6)+(5*9)+(4*3)+(3*3)+(2*0)+(1*2)=155
155 % 10 = 5
So 256933-02-5 is a valid CAS Registry Number.
256933-02-5Relevant articles and documents
A new π-system: 1-aryl-2,5-di(2-thienyl)pyrroles
Ogura, Katsuyuki,Yanai, Hiroyuki,Miokawa, Masazumi,Akazome, Motohiro
, p. 8887 - 8891 (2007/10/03)
1-Aryl-2,5-di(2-thienyl)pyrroles and their oligomers have been synthesized as a new π-system. UV-vis absorption spectra, X-ray crystallographic analysis, and cyclic voltammogram showed that the present π-system showed good co-planarity and high ability to
