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59658-05-8

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59658-05-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 59658-05-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,6,5 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 59658-05:
(7*5)+(6*9)+(5*6)+(4*5)+(3*8)+(2*0)+(1*5)=168
168 % 10 = 8
So 59658-05-8 is a valid CAS Registry Number.

59658-05-8Relevant articles and documents

DI-2-PYRIDYL CARBONATE: A NEW EFFICIENT COUPLING AGENT FOR THE DIRECT ESTERIFICATION OF CARBOXYLIC ACIDS

Kim, Sunggak,Lee, Jae In,Ko, Young Kwan

, p. 4943 - 4946 (2007/10/02)

Reaction of carboxylic acids with equimolar amounts of di-2-pyridyl carbonate and alcohols or thiols in the presence of 4-dimethylaminopyridine as a catalyst in methylene chloride at room temperature affords the corresponding esters in high yields under mild conditions.

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