105408-07-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105408-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,4,0 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 105408-07:
(8*1)+(7*0)+(6*5)+(5*4)+(4*0)+(3*8)+(2*0)+(1*7)=89
89 % 10 = 9
So 105408-07-9 is a valid CAS Registry Number.
105408-07-9Relevant articles and documents
Oxidative Coupling of 5-Aminopyrazoles with p-Phenylenediamines
Hennig, L.,Hofmann, J.,Wilde, H.,Mann, G.
, p. 342 - 348 (2007/10/02)
By oxidative coupling of 5-amino-3-methyl-1-phenyl-pyrazole 4 with N,N-diethyl-p-phenylenediamine the 4-(4-N,N-diethylamino-phenylimino)-3-methyl-1-phenyl-2-pyrazolin-5-imin 5 is formed. 5 is oxidized very easily to the 1H-pyrazoloquinoxaline 6a.Th