498563-45-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 498563-45-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,8,5,6 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 498563-45:
(8*4)+(7*9)+(6*8)+(5*5)+(4*6)+(3*3)+(2*4)+(1*5)=214
214 % 10 = 4
So 498563-45-4 is a valid CAS Registry Number.
498563-45-4Relevant academic research and scientific papers
A concise formal total synthesis of TMC-95A/B proteasome inhibitors.
Albrecht, Brian K,Williams, Robert M
, p. 197 - 200 (2007/10/03)
[reaction: see text] A formal total synthesis of proteasome inhibitors TMC-95A/B is described. The synthesis features a stereoselective modified Julia olefination and a diastereoselective dihydroxylation to construct the highly oxidized tryptophan residue.
