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74448-83-2

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74448-83-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74448-83-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,4 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 74448-83:
(7*7)+(6*4)+(5*4)+(4*4)+(3*8)+(2*8)+(1*3)=152
152 % 10 = 2
So 74448-83-2 is a valid CAS Registry Number.

74448-83-2Relevant articles and documents

IMINATION OF SULFUR-CONTAINING COMPOUNDS. XII. ARYLSULFONYLIMINATION OF N-ACYLARENESULFENAMIDES

Koval', I. V.,Oleinik, T. G.,Kremlev, M. M.

, p. 553 - 555 (2007/10/02)

Arylsulfonylimination at the sulfur of N-acylarenesulfenamides was realized for the first time with the sodiochloroamides of sulfonic acids, where the acyl represents aroyl and alkanoyl groups.The imination of N-acyl-p-nitrobenzenesulfenamides occurs in an aqueous alkaline medium, and this is evidently due to an increase in the nucleophilicity of the sulfur in the corresponding anion on account of the displacement of electronic charge toward it from the nitrogen atom.During the imination of N-acyl-p- and N-acyl-o-nitrobenzenesulfenamides in pyridine cleavage of the sulfur-nitrogen bond occurs, and the NO2C6H4S residue is iminated to form N,N'-bis(arylsulfonyl)-p- and N,N'-bis(arylsulfonyl)-o-nitrobenzenesulfinamidines.

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