464171-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 464171-39-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,6,4,1,7 and 1 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 464171-39:
(8*4)+(7*6)+(6*4)+(5*1)+(4*7)+(3*1)+(2*3)+(1*9)=149
149 % 10 = 9
So 464171-39-9 is a valid CAS Registry Number.
464171-39-9Relevant academic research and scientific papers
[3,3]-Sigmatropic rearrangements: Short, stereocontrolled syntheses of functionalized vitamin D3 side-chain units
Hatcher, Mark A,Posner, Gary H
, p. 5009 - 5012 (2007/10/03)
Enantiomerically pure C,D-ring allylic alcohol 4 stereospecifically undergoes five types of [3,4]-sigmatropic rearrangements to give C-23 functionalized 16-ene vitamin D3 side-chain units with natural C-20(S) stereochemistry.
