142406-53-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142406-53-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,4,0 and 6 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 142406-53:
(8*1)+(7*4)+(6*2)+(5*4)+(4*0)+(3*6)+(2*5)+(1*3)=99
99 % 10 = 9
So 142406-53-9 is a valid CAS Registry Number.
142406-53-9Relevant academic research and scientific papers
Condensation of iminopentenamines with (1-chloroalkylidene)propanedinitriles
Hartke,Sauerbier,Richter
, p. 273 - 277 (2007/10/02)
Condensation of N-alkyl-4-alkylimino-2-penten-2-amines 1 with (1-chloroalkylidene)propanedinitriles 2 leads to the 2-imino-1,2-dihydropyridine-3-carbonitriles 4, which exist in solution as E/Z-mixtures. With perchloric acid 4a yields the diperchlorate 6.
