654680-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 654680-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,4,6,8 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 654680-68:
(8*6)+(7*5)+(6*4)+(5*6)+(4*8)+(3*0)+(2*6)+(1*8)=189
189 % 10 = 9
So 654680-68-9 is a valid CAS Registry Number.
654680-68-9Relevant academic research and scientific papers
Stereoselective construction of four consecutive stereocenters using [2,3]-wittig rearrangement reaction
Toyota, Masahiro,Hirota, Masako,Asoh, Takanobu,Ihara, Masataka
, p. 133 - 145 (2007/10/03)
A diastereoselective construction of four consecutive stereocenters has been achieved using [2,3]-Wittig rearrangement reactions of oxazoline derivatives.
