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197142-05-5

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197142-05-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 197142-05-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,1,4 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 197142-05:
(8*1)+(7*9)+(6*7)+(5*1)+(4*4)+(3*2)+(2*0)+(1*5)=145
145 % 10 = 5
So 197142-05-5 is a valid CAS Registry Number.

197142-05-5Relevant articles and documents

Oxidations of benzyl and phenethyl phenyl sulfides. Implications for the mechanism of the microsomal and biomimetic oxidation of sulfides

Baciocchi, Enrico,Lanzalunga, Osvaldo,Pirozzi, Bruno

, p. 12287 - 12298 (2007/10/03)

The study of the oxidation of 4-methoxyphenethyl phenyl sulfide and 3,4-dimethoxyphenethyl phenyl sulfide with potassium 12-tungstocobalt(III)ate [Co(III)W] suggests that in the radical cations of 3,4,5-(MeO)3PhCH2SPh (4) and 2,4,6(MeO)3PhCH2SPh (5) the positive charge is not localized on the sulfur atom, but in the benzylic aromatic ring. Nevertheless, in the biomimetic and microsomal oxidation of 4 and 5 the products observed are exclusively sulfoxides and sulfones, which appears in contrast with a mechanism involving the formation of an intermediate sulfide radical cation followed by a fast oxygen rebound. A direct oxygen transfer mechanism seems most likely.

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