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503272-01-3

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503272-01-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 503272-01-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,2,7 and 2 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 503272-01:
(8*5)+(7*0)+(6*3)+(5*2)+(4*7)+(3*2)+(2*0)+(1*1)=103
103 % 10 = 3
So 503272-01-3 is a valid CAS Registry Number.

503272-01-3Relevant articles and documents

Discovery and pharmacological profile of new 1H-indazole-3-carboxamide and 2H-pyrrolo[3,4-c]quinoline derivatives as selective serotonin 4 receptor ligands

Furlotti, Guido,Alisi, Maria Alessandra,Apicella, Claudia,Capezzone De Joannon, Alessandra,Cazzolla, Nicola,Costi, Roberta,Cuzzucoli Crucitti, Giuliana,Garrone, Beatrice,Iacovo, Alberto,Magarò, Gabriele,Mangano, Giorgina,Miele, Gaetano,Ombrato, Rosella,Pescatori, Luca,Polenzani, Lorenzo,Rosi, Federica,Vitiello, Marco,Di Santo, Roberto

, p. 9446 - 9466 (2013/01/16)

Since the discovery of the serotonin 4 receptor (5-HT4R), a large number of receptor ligands have been studied. The safety concerns and the lack of market success of these ligands have mainly been attributed to their lack of selectivity. In thi

Synthesis of 4-oxo-4,5-dihydro-3H-pyrrolo[2,3-c]quinoline-1-carboxylic acid ethyl ester and its isomer 1-oxo-2,9-dihydro-1H-β-carboline-4-carboxylic acid ethyl ester

Bergman, Jan,Rehn, Stanley

, p. 9179 - 9185 (2007/10/03)

4-Oxo-4,5-dihydro-3H-pyrrolo[2,3-c]quinoline-1-carboxylic acid ethyl ester was obtained when TosMIC was reacted with 3-methylene-oxindole acetic acid ethyl ester. An alternative synthesis to this pyrroloquinolone was performed via a reduction of a 2,3,4-trisubstituted pyrrole obtained in turn by treatment of a vinyl sulfone with ethyl isocyanoacetate under basic conditions. A β-carboline, isomeric with the pyrroloquinolone, was synthesised utilizing a tosylimine.

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