690228-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690228-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,2,2 and 8 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 690228-64:
(8*6)+(7*9)+(6*0)+(5*2)+(4*2)+(3*8)+(2*6)+(1*4)=169
169 % 10 = 9
So 690228-64-9 is a valid CAS Registry Number.
690228-64-9Relevant academic research and scientific papers
Stereoselective [2,3] sigmatropic rearrangement of acyclic allylic phosphinites
Liron, Frederic,Knochel, Paul
, p. 304 - 305 (2007/10/03)
The [2,3] sigmatropic rearrangement of open-chain allylic phosphinites was found to proceed with high stereoselectivity, allowing the preparation of chiral (E) allylic phosphine oxides and aminophosphine oxides with 99% ee and a perfect transfer of the ch
