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13239-66-2

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13239-66-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13239-66-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,2,3 and 9 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 13239-66:
(7*1)+(6*3)+(5*2)+(4*3)+(3*9)+(2*6)+(1*6)=92
92 % 10 = 2
So 13239-66-2 is a valid CAS Registry Number.

13239-66-2Relevant articles and documents

A facile, safe and inexpensive preparation of S -methyl arylcarbamothioates by methylthiocarbonylation of primary arylamines with O, S -dimethyl carbonodithioate

Degani, Iacopo,Fochi, Rita,Magistris, Claudio

experimental part, p. 1113 - 1122 (2010/05/19)

O,S-Dimethyl carbonodithioate is proposed as a suitable and safely handled reagent that can be used in the methylthiocarbonylation of primary arylamines to give S-methyl arylcarbamothioates. Optimal conditions involved a one-step procedure that was carried out at 45C in a solvent-free system, in the presence of triethyl(methyl)ammonium S-methyl carbonodithioate as a reaction promoter. The title products were obtained pure in yields that, with one exception, varied between 72 and 91% (average yield of the 12 considered examples was 83%). The by-product S,S-dimethyl carbonodithioate is also a valuable reagent. Georg Thieme Verlag Stuttgart · New York.

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