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5373-68-2

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5373-68-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5373-68-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,3,7 and 3 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 5373-68:
(6*5)+(5*3)+(4*7)+(3*3)+(2*6)+(1*8)=102
102 % 10 = 2
So 5373-68-2 is a valid CAS Registry Number.

5373-68-2Relevant articles and documents

The reactions of hydroiodide of 2-amino-1-substituted guanidine derivatives with aromatic isothiocyanates

Dobosz, Maria,Wujec, Monika

, p. 1135 - 1141 (2007/10/03)

In the reaction of hydroiodide of methyl ester of S-methylthio-semicarbazide with primary amines hydroiodides of 2-amino-1-substitutedguanidine were obtained (1). These compounds were then converted to respective 3-arylamino-4-substituted Δ2-1,2,4-triazoline-5-thione and 3- benzylamino-4-substituted Δ2-1,2,4 -triazoline-5-thione (2) in the reactions with isothiocyanates.

Oxidation and Eliminative Cyclisation of S-Alkylisodithiobiureas

Indukumari, P. V.,Joshua, C. P.,Rajan, V. P.

, p. 384 - 387 (2007/10/02)

Isothiocyanates condense with S-alkylisothiosemicarbazides to yield S-alkylisodithiobiureas.These undergo cyclisation to give 3-amino-5-mercapto-4-substituted-1,2,4-triazoles with the elimination of alkyl mercaptan on heating under neutral conditions, whereas under acidic conditions, by elimination of ammonia 5-alkylmercapto-2-substituted amino-1,3,4-thiadiazoles are formed.Condensation of isothiocyanates with thiosemicarbazides in the presence of alkali affords 1-substituted dithiobiureas.Alkylation of these dithiobiureas with alkyl halides results in the formation of 5-alkylmercapto-2-substituted-amino-1,3,4-thiadiazoles, any intermediateproduct not being isolable.On the other hand, oxidation of 1-substituted dithiobiureas with either hydrogen peroxide or iodine furnishes 2-amino-5-substituted-amino-1,3,4-thiadiazoles.

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