208520-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208520-90-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,5,2 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 208520-90:
(8*2)+(7*0)+(6*8)+(5*5)+(4*2)+(3*0)+(2*9)+(1*0)=115
115 % 10 = 5
So 208520-90-5 is a valid CAS Registry Number.
208520-90-5Relevant articles and documents
Antiviral medicaments
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, (2008/06/13)
The invention is concerned with amino acid derivatives of the formula and salts of acidic compounds of formula I with bases, which are viral proteinase inhibitors useful as antiviral agents, especially for the treatment or prophylaxis of infections caused by Hepatitis C, Hepatitis G and human GB viruses.