121568-13-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121568-13-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,6 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121568-13:
(8*1)+(7*2)+(6*1)+(5*5)+(4*6)+(3*8)+(2*1)+(1*3)=106
106 % 10 = 6
So 121568-13-6 is a valid CAS Registry Number.
121568-13-6Relevant articles and documents
Substituted imidazo(2,1-b)quinazolin-5(3H)-ones and related tricyclic compounds and use as bronchodilators
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, (2008/06/13)
The present invention is directed to a group of compounds which are imidazo[2,1-b]quinazolin-5(3H)-ones, related tricyclic compounds, and pharmaceutically acceptable salts thereof. These compounds are useful as bronchodilators. These compounds are prepare