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19430-35-4

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19430-35-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19430-35-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,4,3 and 0 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 19430-35:
(7*1)+(6*9)+(5*4)+(4*3)+(3*0)+(2*3)+(1*5)=104
104 % 10 = 4
So 19430-35-4 is a valid CAS Registry Number.

19430-35-4Downstream Products

19430-35-4Relevant articles and documents

Derives de la dihydro-2,4 triazole-1,2,4 thione-3 et de l'amino-2 thiadiazole-1,3,4 a partir de nouvelles thiosemicarbazones d'esters

Malbec, Frederique,Milcent, Rene,Barbier, Geo

, p. 1689 - 1698 (2007/10/02)

A new general synthesis of 4,5-disubstituted 2,4-dihydro-1,2,3-triazole-3-thiones is proposed.These heterocycles are obtained by the action of primary amines, aralhydrazines or aroylhydrazines on the thiosemicarbazones of esters.These last compounds are prepared by action of chlorhydrates of iminoesters on thiosemicarbazide in dimethylformamide.These thiosemicarbazones react also with strong acids, acid anhydrides and chlorides; by thermolysis and they give 2-amino-1,3,4-thiadiazole derivatives.Also, two derivatives of 1,2,4-triazolo-1,3,4-thiadiazole have been prepared.

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