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120449-42-5

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120449-42-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 120449-42-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,4,4 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 120449-42:
(8*1)+(7*2)+(6*0)+(5*4)+(4*4)+(3*9)+(2*4)+(1*2)=95
95 % 10 = 5
So 120449-42-5 is a valid CAS Registry Number.

120449-42-5Relevant articles and documents

Se-Aryl Alkane- or Arenecarboselenothioates: Synthesis and Some Reactions

Kato, Shinzi,Yasui, Eiji,Terashima, Kiyomitsu,Ishihara, Hideharu,Murai, Toshiaki

, p. 3931 - 3942 (2007/10/02)

A series of Se-aryl carboselenothioates 3 (RCSSeAr, R=alkyl, aryl) were synthesized and characterized from the reaction of bis(thioacyl) sulfides 1 with sodium areneselenolates.The thionselenolesters 3 are stable (liquid or crystals) both thermally and to moisture.Reactions of 3 with aliphatic primary and secondary amines gave the corresponding ammonium carbodithioates 8 together with diphenyl diselenide 7.In contrast, treatment with aromatic amines or sodium alcoholates afforded the corresponding thioamides or O-alkyl or O-aryl thionoesters in good yields.The oxidation of 3 with m-chloroperbenzoic acid gave the corresponding sulfides 12 and acyl arylseleno sulfides 13 which are formed by a rearrangement of the ArSe group to the thiocarbonyl sulfur atom.

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