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4-Ethyl-2-{[(E)-4-methoxy-phenylimino]-methyl}-7-oxo-4,7-dihydro-thieno[3,2-b]pyridine-6-carboxylic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

134890-71-4

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134890-71-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134890-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,9 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134890-71:
(8*1)+(7*3)+(6*4)+(5*8)+(4*9)+(3*0)+(2*7)+(1*1)=144
144 % 10 = 4
So 134890-71-4 is a valid CAS Registry Number.

134890-71-4Relevant academic research and scientific papers

Synthesis and antibacterial activity of 4,7-dihydro-4-ethyl-7-oxothieno(3,2-b)pyridine-6-carboxylic acids

Malicorne,Bompart,Giral,Despaux

, p. 3 - 11 (2007/10/02)

The synthesis of some new 4,7-dihydro-4-ethyl-7-oxothieno(3,2-b)pyridine-6-carboxylic acids with various substituents on position 2 is described. The evaluation of the anti-bacterial activity of some compounds shows an activity different to those of the thieno(2,3-b)pyridine series.

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