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117869-21-3

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117869-21-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117869-21-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,8,6 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117869-21:
(8*1)+(7*1)+(6*7)+(5*8)+(4*6)+(3*9)+(2*2)+(1*1)=153
153 % 10 = 3
So 117869-21-3 is a valid CAS Registry Number.

117869-21-3Relevant articles and documents

Sulfides, sulfones, and sulfoxides of the furan-2(5H)-one series. synthesis and structure

Latypova,Saigitbatalova, E. Sh.,Chulakova,Lodochnikova,Kurbangalieva,Berdnikov,Chmutova

, p. 521 - 534 (2014/06/10)

A number of 4- and 5-R-sulfanylfuran-2(5H)-one derivatives were synthesized, and their oxidation with various reagents was studied. The corresponding sulfones were obtained using hydrogen peroxide in acetic acid. 4-R-sulfanyl derivatives were selectively oxidized to sulfoxides with m-chloroperoxybenzoic acid. The molecular and crystal structures of some new sulfones and sulfoxides were determined by X-ray analysis.

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