1433381-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1433381-31-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,3,3,8 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1433381-31:
(9*1)+(8*4)+(7*3)+(6*3)+(5*3)+(4*8)+(3*1)+(2*3)+(1*1)=137
137 % 10 = 7
So 1433381-31-7 is a valid CAS Registry Number.
1433381-31-7Relevant articles and documents
PHARMACEUTICAL COMPOUNDS
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Page/Page column 128; 155, (2013/05/22)
The invention provides compounds that are useful in the treatment of hepatitis C virus (HCV) infections. The compounds have the formula (1): or a salt, N-oxide, tautomer or stereoisomer thereof, wherein A is CH or N; E is CH or N; R1 is selecte