214139-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 214139-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,4,1,3 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 214139-74:
(8*2)+(7*1)+(6*4)+(5*1)+(4*3)+(3*9)+(2*7)+(1*4)=109
109 % 10 = 9
So 214139-74-9 is a valid CAS Registry Number.
214139-74-9Relevant articles and documents
Antiviral protease inhibitors
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, (2008/06/13)
Compounds of the formula I: wherein: A′ and A″ are independently the same or different group of the formula II: wherein: R′ is H. CH3, C(CH3)2, —ORa, —N(Ra)2, —N(Ra)ORa/sup