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6-fluoro-4-hydroxy-3-methyl-quinoline-2-carboxylic acid ethyl ester is a complex organic compound with the molecular formula C13H12FNO3. It is a derivative of quinoline, a heterocyclic aromatic compound with a benzene ring fused to a pyridine ring. The presence of a fluorine atom at the 6-position, a hydroxyl group at the 4-position, a methyl group at the 3-position, and a carboxylic acid group at the 2-position, with an ethyl ester functional group, contributes to its unique chemical properties. 6-fluoro-4-hydroxy-3-methyl-quinoline-2-carboxylic acid ethyl ester is of interest in the field of medicinal chemistry, potentially for its activity against various diseases, and is often synthesized for research purposes to explore its biological properties and potential therapeutic applications.

343-09-9

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343-09-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 343-09-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,4 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 343-09:
(5*3)+(4*4)+(3*3)+(2*0)+(1*9)=49
49 % 10 = 9
So 343-09-9 is a valid CAS Registry Number.

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