500221-68-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 500221-68-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,2,2 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 500221-68:
(8*5)+(7*0)+(6*0)+(5*2)+(4*2)+(3*1)+(2*6)+(1*8)=81
81 % 10 = 1
So 500221-68-1 is a valid CAS Registry Number.
500221-68-1Relevant articles and documents
Urea derivatives as HIV aspartyl protease inhibitors
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, (2008/06/13)
The present invention provides HIV aspartyl protease inhibitors of the formula: and when the compound of formula I comprises an amino group, pharmaceutically acceptable ammonium salts thereof, wherein n is 3 or 4, Y is O, S, NH or N—CN, wherein Cx may be,
