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109082-23-7

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109082-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109082-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,8 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109082-23:
(8*1)+(7*0)+(6*9)+(5*0)+(4*8)+(3*2)+(2*2)+(1*3)=107
107 % 10 = 7
So 109082-23-7 is a valid CAS Registry Number.

109082-23-7Relevant articles and documents

Metal Template Reactions. XXIV. Synthesis of Macrocyclic Amide and Ester Complexes via Substituted 1,1'-Oxalylbisisatins and the Deesterification of Some ester Complexes

Black, David St. C.,Moss, G. Ian

, p. 143 - 155 (2007/10/02)

The 5-substituted phenylglyoxylic esters (3) and amides (4) have been prepared via the corresponding 1,1'oxalylbisisatins (2).The nickel(II) macrocyclic amide complexes (7) have been prepared but the related ester complexes (5) were found to undergo deesterification (hydrolysis and decarboxylation) to provide a convenient route to the proto-complexes (6).

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