132973-07-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 132973-07-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,9,7 and 3 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 132973-07:
(8*1)+(7*3)+(6*2)+(5*9)+(4*7)+(3*3)+(2*0)+(1*7)=130
130 % 10 = 0
So 132973-07-0 is a valid CAS Registry Number.
132973-07-0Relevant articles and documents
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.
