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1018853-62-7

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1018853-62-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1018853-62-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,8,8,5 and 3 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1018853-62:
(9*1)+(8*0)+(7*1)+(6*8)+(5*8)+(4*5)+(3*3)+(2*6)+(1*2)=147
147 % 10 = 7
So 1018853-62-7 is a valid CAS Registry Number.

1018853-62-7Relevant articles and documents

PROCESS FOR THE CATALYTIC SYNTHESIS OF DIARYL ETHERS

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Page/Page column 4-5, (2009/06/27)

Described is a process for preparing diaryl ethers of the formula (I) [in-line-formulae]Ar—O—Ar′??(I)[/in-line-formulae]In which Ar is an aryl or substituted aryl group and Ar′ is an aryl, substituted aryl, heteroaryl or substituted heteroaryl group,by reacting an aryl of formula (II) or a aryloxy salt of formula (III) [in-line-formulae]Ar—OH ??(II)[/in-line-formulae] [in-line-formulae]Ar—OR ??(III)[/in-line-formulae]In which Ar has the same meaning as in formula (I) and R is an alkali metal,with an aryl or heteroaryl bromide of formula (IV) [in-line-formulae]Ar′—Br ??(IV)[/in-line-formulae]In which Ar′ has the same meaning as in formula (I),characterized in that the reaction is carried out in the presence of a copper(I)salt and a 1-substituted imidazole as catalyst system.

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