Cas 40207-05-4,3-(chloromethyl)-4-methylbenzoic acid

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Check Digit Verification of cas no

The CAS Registry Mumber 40207-05-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,2,0 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40207-05:
(7*4)+(6*0)+(5*2)+(4*0)+(3*7)+(2*0)+(1*5)=64
64 % 10 = 4
So 40207-05-4 is a valid CAS Registry Number.

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40207-05-4Relevant articles and documents

Dendro-shaped blocks with arylsulfanyl fragments based on p-toluic acid

Berezhnaya, Victoria N.,Maksimov, Alexander M.,Platonov, Vyacheslav E.,Shelkovnikov, Vladimir V.

, p. 442 - 443 (2018)

Chloromethylation of p-toluic acid affords 3,5-bis(chloro- methyl)-4-methylbenzoic acid whose subsequent treatment with arenethiols brings about spacer dendrimeric blocks containing polyfluoroarylsulfanyl fragments in a total yield of 60-75%.

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40207-05-4