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(4-Bromo-phenyl)-(4-methoxycarbonylmethyl-phenoxy)-acetic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77143-79-4

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77143-79-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77143-79-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,4 and 3 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77143-79:
(7*7)+(6*7)+(5*1)+(4*4)+(3*3)+(2*7)+(1*9)=144
144 % 10 = 4
So 77143-79-4 is a valid CAS Registry Number.

77143-79-4Relevant academic research and scientific papers

Benzofuran Derivatives: Part III - Rearrangement During Cyclization of Ethyl &α-(4-Methoxycarbonylalkylphenoxy)arylacetates and Formation of 3-Aryl-2(3H)-benzofuranone-5-alkanoic Acid Esters

Shridhar, D. R.,Sastry, C. V. Reddy,Mehrotra, A. K.,Bansal, O. P.

, p. 891 - 893 (2007/10/02)

Treatment of ethyl α-(4-methoxycarbonylalkylphenoxy)arylacetates (III) with conc.H2SO4 or PPA leads to 3-aryl-2(3H)-benzofuranone-5-alkanoic acid esters (V), via rearrangement and cyclization.Acid hydrolysis of V furnishes 3-aryl-2(3H)-benzofuranone-5-alkanoic acids (VI).These compounds show a moderate antiinflammatory activity.

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