131653-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131653-45-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,6,5 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 131653-45:
(8*1)+(7*3)+(6*1)+(5*6)+(4*5)+(3*3)+(2*4)+(1*5)=107
107 % 10 = 7
So 131653-45-7 is a valid CAS Registry Number.
131653-45-7Relevant academic research and scientific papers
A New Synthesis of (R)-GABOB and (R)-Oxiracetam
Orena, Mario,Porzi, Gianni,Sandri, Sergio
, p. 2701 - 2711 (2007/10/02)
The synthesis of both (R)-GABOB 1 and (R)-Oxiracetam 2 through the same diastereomer intermediate 8a is reported.
