558459-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 558459-33-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,8,4,5 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 558459-33:
(8*5)+(7*5)+(6*8)+(5*4)+(4*5)+(3*9)+(2*3)+(1*3)=199
199 % 10 = 9
So 558459-33-9 is a valid CAS Registry Number.
558459-33-9Relevant academic research and scientific papers
Enantioselective total synthesis of (+)-obtusenyne
Crimmins, Michael T.,Powell, Mark T.
, p. 7592 - 7595 (2007/10/03)
A total synthesis of the laurencia metabolite (+)-obtusenyne has been completed. The key steps include a Sharpless kinetic resolution and an asymmetric glycolate alkylation to establish the stereogenic centers adjacent to the ether linkage and a ring-clos
