Cas 110915-21-4,methyl 1-phenylsulfonyl-3-cyclopentene-1-carboxylate

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Check Digit Verification of cas no

The CAS Registry Mumber 110915-21-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,9,1 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 110915-21:
(8*1)+(7*1)+(6*0)+(5*9)+(4*1)+(3*5)+(2*2)+(1*1)=84
84 % 10 = 4
So 110915-21-4 is a valid CAS Registry Number.

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110915-21-4Relevant articles and documents

Phenylsulfonyl as a directing group for nitrile oxide cycloadditions and mCPBA epoxidations

Butler, Jeffrey D.,Donald, Michael B.,Ding, Zhensheng,Fettinger, James C.,Kurth, Mark J.

supporting information; experimental part, p. 5110 - 5112 (2009/12/01)

An unexpected selectivity trend in the nitrile oxide cycloaddition and epoxidation reactions of 4,4-disubstituted cyclopentenes is reported. A variety of facially distinct, 'X-' and 'Y-substituted' cyclopentenes were investigated.

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110915-21-4