205489-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205489-04-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,4,8 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 205489-04:
(8*2)+(7*0)+(6*5)+(5*4)+(4*8)+(3*9)+(2*0)+(1*4)=129
129 % 10 = 9
So 205489-04-9 is a valid CAS Registry Number.
205489-04-9Relevant articles and documents
Diastereoselective routes to side-chain truncated analogues of N-acetylneuraminic acid
Banwell, Martin,De Savi, Chris,Hockless, David,Watson, Keith
, p. 645 - 646 (2007/10/03)
Vitamin C 3 has been converted, in a completely stereo-controlled manner, into the side-chain truncated analogues 4 and 5 of N-acetylneuraminic acid 1.