254-97-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 254-97-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,5 and 4 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 254-97:
(5*2)+(4*5)+(3*4)+(2*9)+(1*7)=67
67 % 10 = 7
So 254-97-7 is a valid CAS Registry Number.
254-97-7Relevant articles and documents
Synthesis and Spectral Data of Pyrido-as-triazines
Ple, N.,Queguiner, G.
, p. 475 - 476 (2007/10/02)
The pyrido-as-triazine and its 3-phenyl derivatives were prepared via cyclisation with polyphosphoric acid of suitable 3-substituted 2-aminopyridines obtained by reduction of the corresponding 2-nitropyridines.The 3-substituted 2-nitropyridines wer