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75012-63-4

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75012-63-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75012-63-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,0,1 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 75012-63:
(7*7)+(6*5)+(5*0)+(4*1)+(3*2)+(2*6)+(1*3)=104
104 % 10 = 4
So 75012-63-4 is a valid CAS Registry Number.

75012-63-4Relevant articles and documents

Structure-Activity Relationships of Antibacterial 6,7- and 7,8-Disubstituted 1-Alkyl-1,4-dihydro-4-oxoquinoline-3-carboxylic Acids

Koga, Hiroshi,Itoh, Akira,Murayama, Satoshi,Suzue, Seigo,Irikura, Tsutomu

, p. 1358 - 1363 (2007/10/02)

Previous quantitative and qualitative structure-activity studies in antibacterial monosubstituted 1-ethyl-1,4-dihydro-4-oxoquinoline-3-carboxylic acids prompted us to synthesize the 6,7,8-polysubstituted compounds.In this paper, the preparation and antibacterial activity of the 6,7- and 7,8-disubstituted compounds and their derivatives are described.Among these compounds, 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)quinoline-3-carboxylic acid (34) possessed many significant activities and was more active than oxolinic acid (84) against Gram-positive andGram-negative bacteria.Structure activity relationships are discussed.

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