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117009-61-7

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117009-61-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117009-61-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,0,0 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117009-61:
(8*1)+(7*1)+(6*7)+(5*0)+(4*0)+(3*9)+(2*6)+(1*1)=97
97 % 10 = 7
So 117009-61-7 is a valid CAS Registry Number.

117009-61-7Relevant articles and documents

Synthesis and metal ion complexation behavior of polycarboxylate 18-crown-6 ethers derived from tartaric acid

Dutton, Philip J.,Fyles, Thomas M.,McDermid, Susan J.

, p. 1097 - 1108 (2007/10/02)

The metal ion complexation behavior of four 18-crown-6 ethers derived from (+)- and meso-tartaric acid is examined.Preparation of a meso-crown ether diacid and a crown ether hexacid from three units of (+)-tartaric acid are described.Acidity constants and

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