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1174020-91-7

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1174020-91-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1174020-91-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,4,0,2 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1174020-91:
(9*1)+(8*1)+(7*7)+(6*4)+(5*0)+(4*2)+(3*0)+(2*9)+(1*1)=117
117 % 10 = 7
So 1174020-91-7 is a valid CAS Registry Number.

1174020-91-7Relevant articles and documents

BETA-LACTAMASE INHIBITORS

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Page/Page column 84, (2009/08/16)

Substituted bicyclic beta-lactams of Formula I: (I), are ?-lactamase inhibitors, wherein a, X, R1 and R2 are defined herein. The compounds and pharmaceutically acceptable salts thereof are useful in the treatment of bacterial infections in combination with ?-lactam antibiotics. In particular, the compounds can be employed with a ?-lactam antibiotics (e.g., imipenem, piperacillin, or ceftazidime) against microorganisms resistant to ?-lactam antibiotics due to the presence of the ?-lactamases.

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