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98274-02-3

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98274-02-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98274-02-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,2,7 and 4 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 98274-02:
(7*9)+(6*8)+(5*2)+(4*7)+(3*4)+(2*0)+(1*2)=163
163 % 10 = 3
So 98274-02-3 is a valid CAS Registry Number.

98274-02-3Relevant articles and documents

Sulfonyl esters. 3. The formation of sulfone-sulfonates in the reactions of aryl methanesulfonates with sodium borohydride

Baum, James Clayton,Durkin, Kathleen Anne,Precedo, Laura,O'Blenes, Stacy Brian,Goehl, John Edward,et al.

, p. 2127 - 2135 (2007/10/02)

Sodium hydride reductions of aryl methanesulfonates afford dimeric sulfone-sulfonate esters as well as products arising from SO bond rupture.SO bond rupture becomes more competitive as the LUMO energy of the sulfonate ester declines.Exploration of the chemistry of a sulfone-sulfonate ester revealed a complex novel reaction that resulted in the formation of, inter alia, a dichloromethanesulfonate ester and a trichloromethanesulfonate aster.The first succesful approaches to the synthesis of the heretofore unknown trichloromethanesulfonates and dichloromethanesulfonates are reported.Key words: sodium hydride reductions, sulfenes, sulfone-sulfonate esters.

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