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133618-94-7

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133618-94-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133618-94-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,1 and 8 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 133618-94:
(8*1)+(7*3)+(6*3)+(5*6)+(4*1)+(3*8)+(2*9)+(1*4)=127
127 % 10 = 7
So 133618-94-7 is a valid CAS Registry Number.

133618-94-7Downstream Products

133618-94-7Relevant articles and documents

Enantioselective oxidation of thioethers. A route to the resolution of -2,2'-dithiol

Furia, F. di,Licini, G.,Modena, G.,Valle, G.

, p. 734 - 744 (2007/10/02)

A route to the resolution of racemic -2,2'-dithiol 2 is described, involving the transformation of 2 into a series of dithioethers.The latter are subjected to asymmetric oxidation to monosulfoxides by a procedure developed in our laboratory.For some of the thioethers examined the oxidation is highly diastereo- and/or enantioselective.The resolved 2 is then obtained from the optically pure monosulfoxides either by oxidation to the bis-sulfoxides followed by a Pummerer reaction or by a deoxygenation to the dithioether and subsequent reduction.In both cases enantiomerically pure 2 (e.e. > 98percent) was obtained.Keywords: enantioselective oxidation / optical resolution / thioethers / -2,2'-dithiol

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