923-97-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 923-97-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,2 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 923-97:
(5*9)+(4*2)+(3*3)+(2*9)+(1*7)=87
87 % 10 = 7
So 923-97-7 is a valid CAS Registry Number.
923-97-7Relevant academic research and scientific papers
Synthesis of Derivatives of Pyrazinopyridimidin-4-ones
Dennin, F.,Blondeau, D.,Sliwa, H.
, p. 1639 - 1643 (2007/10/02)
3-Alkoxy-2-aminopyrazines have been condensed with ethyl ethoxymethylenemalonate and isopropylidene methoxymethylenemalonate to afford 9-alkoxypyrazinopyrimidin-4-ones substituted in the first case by an ethoxycarbonyl group at 3 position.
