201218-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201218-09-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,2,1 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 201218-09:
(8*2)+(7*0)+(6*1)+(5*2)+(4*1)+(3*8)+(2*0)+(1*9)=69
69 % 10 = 9
So 201218-09-9 is a valid CAS Registry Number.
201218-09-9Relevant articles and documents
Asymmetric synthesis of quinazolin-2-ones useful as HIV reverse transcriptase inhibitors
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, (2008/06/13)
This invention relates generally to the asymmetric synthesis of quinazolin-2-ones that are useful as inhibitors of HIV reverse transcriptase. The synthesis is accomplished through the chiral ligand mediated addition of cyclopropylacetylide.