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118539-51-8

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118539-51-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118539-51-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,5,3 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 118539-51:
(8*1)+(7*1)+(6*8)+(5*5)+(4*3)+(3*9)+(2*5)+(1*1)=138
138 % 10 = 8
So 118539-51-8 is a valid CAS Registry Number.

118539-51-8Downstream Products

118539-51-8Relevant articles and documents

Fluoronaphthyridines and Quinolones as Antibacterial Agents. 1. Synthesis and Structure-Activity Relationships of New 1-Substituted Derivatives

Bouzard, D.,Cesare, P. Di,Essiz, M.,Jacquet, J. P.,Remuzon, P.,et al.

, p. 537 - 542 (2007/10/02)

A series of novel 7-piperazinyl-1-substituted-6-fluoroquinolones and naphthyridines have been prepared and their antibacterial activities evaluated.These derivatives are characterized by having alkyl, alkenyl, arylalkyl, cycloalkyl, and cycloalkenyl groups at the 1-position.As a result of this study, derivatives 7 and 26, which are substituted with tert-butyl groups at N-1, were found to possess excellent in vitro and in vivo potency, particularly against Staphylococcus aureus, comparable to that of norfloxacin (1) or ciprofloxacin (10).Structure-activity relationships of N-1 substituted alkyls and cycloalkyls are also discussed.

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