Cas 550374-40-8,3-(3-bromobenzyl)-4-hydroxy-1-methylquinolin-2(1H)-one

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Check Digit Verification of cas no

The CAS Registry Mumber 550374-40-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,0,3,7 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 550374-40:
(8*5)+(7*5)+(6*0)+(5*3)+(4*7)+(3*4)+(2*4)+(1*0)=138
138 % 10 = 8
So 550374-40-8 is a valid CAS Registry Number.

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550374-40-8Relevant academic research and scientific papers

Iridium catalysed alkylation of 4-hydroxy coumarin, 4-hydroxy-2-quinolones and quinolin-4(1H)-one with alcohols under solvent free thermal conditions

Grigg, Ronald,Whitney, Simon,Sridharan, Visuvanathar,Keep, Ann,Derrick, Andrew

experimental part, p. 7468 - 7473 (2009/12/04)

Ir catalysed alkylation of 4-hydroxy coumarin, 4-hydroxy-2-quinolones and quinolin-4(1H)-one with a range of substituted benzyl and aliphatic alcohols under solvent free thermal conditions afforded the corresponding monoalkylated products in high to excel

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