134905-28-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134905-28-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,9,0 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 134905-28:
(8*1)+(7*3)+(6*4)+(5*9)+(4*0)+(3*5)+(2*2)+(1*8)=125
125 % 10 = 5
So 134905-28-5 is a valid CAS Registry Number.
134905-28-5Relevant articles and documents
Azimines Revisited: The Structure of a Magenta Dye
Boulton, A. J.,Henderson, Neil,Powell, Anne K.,Bracke, Ben R. F.,Lenstra, Albert T. H.,Vanmaele, Luc J.
, p. 5278 - 5281 (1991)
The dye formed on condensation of N,N-diethyl-4-nitrosoaniline with indazolin-3-one is shown by X-ray crystallography to have the azimine structure 7b.
