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31383-34-3

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31383-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31383-34-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,3,8 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31383-34:
(7*3)+(6*1)+(5*3)+(4*8)+(3*3)+(2*3)+(1*4)=93
93 % 10 = 3
So 31383-34-3 is a valid CAS Registry Number.

31383-34-3Upstream product

31383-34-3Relevant articles and documents

METHOD FOR PRODUCING PYRIDAZINONE COMPOUNDS AND INTERMEDIATE THEREOF

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Page/Page column 277-278, (2012/03/27)

The present invention relates to a novel method for producing a pyridazinone compound and an intermediate thereof as shown in the following scheme: wherein the symbols are as defined in the specification.

Selective and mild oxidation of sulfides to sulfoxides by oxodiperoxo molybdenum complexes adsorbed onto silica gel

Batigalhia, Fabiana,Zaldini-Hernandes, Marcelo,Ferreira, Ant?nio G,Malvestiti, Ivani,Cass, Quezia B

, p. 9669 - 9676 (2007/10/03)

Aliphatic and aromatic sulfides, ketosulfides, sulfinyl acids and esters, and olefinic sulfides were oxidized to sulfoxides using oxodiperoxo complexes of molybdenum coated on silica gel (150 ? pore size) in very high yields. Complete chemoselectivity was observed for the oxidation of all functional sulfides. Sulfones were, however, the main products of the reaction when the complexes were not coated on silica gel. The influence of silica gel as the support of these reactions was also investigated and it was demonstrated that it alters the reactivity of the complex but it is not responsible for the excellent chemoselectivity of the complexes. The complex [MoO(O2)2(pyrazole) (H2O)] proved to be more reactive than [MoO(O2)2(Opyr) (H2O)].

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