143697-19-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143697-19-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,6,9 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143697-19:
(8*1)+(7*4)+(6*3)+(5*6)+(4*9)+(3*7)+(2*1)+(1*9)=152
152 % 10 = 2
So 143697-19-2 is a valid CAS Registry Number.
143697-19-2Relevant academic research and scientific papers
Retro-Diels-Alder fragmentation of 2,5,6-triphenyl-3,4-didehydropyridine generated by flash vacuum pyrolysis at 900°C
Brown,Choi,Eastwood
, p. 3787 - 3790 (2007/10/02)
2,5,6-Triphenyl-3,4-didehydropyridine, generated by FVP of the corresponding 3,4-dicarboxylic anhydride (6) at 900°C/0.02 mm, undergoes mainly retro-Diels-Alder cleavage to 1,4-diphenylbutadiyne and benzonitrile.
