857904-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857904-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,9,0 and 4 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 857904-23:
(8*8)+(7*5)+(6*7)+(5*9)+(4*0)+(3*4)+(2*2)+(1*3)=205
205 % 10 = 5
So 857904-23-5 is a valid CAS Registry Number.
857904-23-5Relevant articles and documents
HIV PROTEASE INHIBITING COMPOUNDS
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Page/Page column 121, (2010/02/12)
A compound of the formula (I) is disclosed as an HIV protease inhibitor. Methods and compositions for inhibiting an HIV infection are also disclosed.