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139268-91-0

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139268-91-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139268-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,2,6 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 139268-91:
(8*1)+(7*3)+(6*9)+(5*2)+(4*6)+(3*8)+(2*9)+(1*1)=160
160 % 10 = 0
So 139268-91-0 is a valid CAS Registry Number.

139268-91-0Downstream Products

139268-91-0Relevant articles and documents

Carbon-13 NMR Spectra of Some 2-Ethylthio-4'-Substituted Acetophenones and Their Mono- and Di-Oxygenated Derivatives

Olivato, Paulo Roberto,Bonfada, Elida,Rittner, Roberto

, p. 81 - 84 (2007/10/02)

The 13C NMR signals for some 2-ethylthio-, 2-ethylsulphinyl- and 2-ethylsulphonyl-4'-substituted acetophenones were assigned.The carbonyl carbons exhibit a progressive upfield shift on going from the ketosulphides to the ketosulphoxides and to the ketosul

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