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474011-42-2

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474011-42-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 474011-42-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,4,0,1 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 474011-42:
(8*4)+(7*7)+(6*4)+(5*0)+(4*1)+(3*1)+(2*4)+(1*2)=122
122 % 10 = 2
So 474011-42-2 is a valid CAS Registry Number.

474011-42-2Relevant articles and documents

Regio- and stereoselective synthesis of [1,3]thiazolo[3,2-b][1,2,4]triazol-7-ium salts via electrophilic heterocyclization of 3-S-propargylthio-4H-1,2,4-triazoles and their antimicrobial activity

Slivka, Mikhailo,Korol, Nataliya,Pantyo, Valerij,Baumer, Vjacheslav,Lendel, Vasil

, p. 109 - 113 (2017)

A procedure for the preparation of the title salts via regioselective halocyclization of 3-S-propargylthio-4H-1,2,4-triazoles is reported. Stereoselectivity of electrophilic heterocyclization depends on the nature of the electrophilic reagent: bromination is better than iodobromination and iodination. The heterocyclization with tellurium tetrahalogenides leads to the formation of a mixture of geometric isomers of the salts. Their structure was confirmed by 1H NMR, 13C NMR, HMBC and single crystal X-ray diffraction analysis.

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