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1028203-17-9

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1028203-17-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1028203-17-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,8,2,0 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1028203-17:
(9*1)+(8*0)+(7*2)+(6*8)+(5*2)+(4*0)+(3*3)+(2*1)+(1*7)=99
99 % 10 = 9
So 1028203-17-9 is a valid CAS Registry Number.

1028203-17-9Downstream Products

1028203-17-9Relevant articles and documents

Antimycobacterial activities of novel 2-(sub)-3-fluoro/nitro-5,12-dihydro-5-oxobenzothiazolo[3,2-a]quinoline-6 -carboxylic acid

Dinakaran, Murugesan,Senthilkumar, Palaniappan,Yogeeswari, Perumal,China, Arnab,Nagaraja, Valakunja,Sriram, Dharmarajan

, p. 3408 - 3418 (2008/09/19)

Various 2-(sub)-3-fluoro/nitro-5,12-dihydro-5-oxobenzothiazolo[3,2-a]quinoline-6 -carboxylic acid derivatives were synthesized from 2-aminothiophenol by a five-step reaction, evaluated for in-vitro and in-vivo antimycobacterial activities against Mycobacterium tuberculosis H37Rv (MTB), multi-drug resistant Mycobacterium tuberculosis (MDR-TB), and Mycobacterium smegmatis (MC2), and also tested for the ability to inhibit the supercoiling activity of DNA gyrase from M. smegmatis. Among the thirty-four synthesized compounds, 2-(3-(diethylcarbamoyl)piperidin-1-yl)-)-3-fluoro-5,12-dihydro-5-oxobenz othiazolo[3,2-a]quinoline-6-carboxylic acid (7l) was found to be the most active compound in vitro with MIC of 0.18 and 0.08 μM against MTB and MTR-TB, respectively. Compound 7l was found to be 2 and 570 times more potent than isoniazid against MTB and MDR-TB, respectively. In the in-vivo animal model 7l decreased the bacterial load in lung and spleen tissues with 2.78 and 3.12 - log 10 protections, respectively, at the dose of 50 mg/kg body weight.

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