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107640-38-0

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107640-38-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107640-38-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,6,4 and 0 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 107640-38:
(8*1)+(7*0)+(6*7)+(5*6)+(4*4)+(3*0)+(2*3)+(1*8)=110
110 % 10 = 0
So 107640-38-0 is a valid CAS Registry Number.

107640-38-0Relevant articles and documents

Synthesis of 4,4-Disubstituted 1,3-Thiazol-5(4H)-thiones

Jenny, Christjohannes,Heimgartner, Heinz

, p. 374 - 388 (2007/10/02)

An easy synthesis for the 1,3-thiazol-5(4H)-thiones 5, a class of heterocycles which have hitherto only been available with difficulty, is described.Reaction of 3-amino-2H-azirines 25 with thiocarboxylic acids at 0 deg yields monothiodiamides of type 20 (Scheme 6) which, on treatment with Lawesson reagent at 100 deg, undergo thiation and cyclization to give 5 in good yield.

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