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126957-58-2

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126957-58-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 126957-58-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,9,5 and 7 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 126957-58:
(8*1)+(7*2)+(6*6)+(5*9)+(4*5)+(3*7)+(2*5)+(1*8)=162
162 % 10 = 2
So 126957-58-2 is a valid CAS Registry Number.

126957-58-2Relevant articles and documents

REAKTIONEN VON THIOXOHETEROCYCLEN MIT N-CHLORAMIDEN II. N-SUBSTITUIERTE 2- ODER 4-THIOPYRIDONE UND NATRIUM-N-CHLORBENZOLSULFONAMIDE

Boberg, Friedrich,Bruchmann, Bernd,Nink, Gunter,Garming, Alfons

, p. 267 - 284 (2007/10/02)

N-Substituted 2- and 4-pyridinethiones A react with sodium-N-chlorobenzenesulfonamides 1 to N-phenylsulfonyl-S-pyridylidenesulfimides B, N,N'-bis(phenylsulfonyl)-S-pyridiniosulfodiimidates C and N-pyridylidenebenzenesulfonamides D.The constitution of the new pyridiniosulfodiimidates C is proved by X-ray crystal structure of one compound C and by 1H-NMR spectra of all 1-methylpyridinio-compounds C, which have a downfield shift for the N-methyl-δ-values.Formation, stabilities, IR-, 1H-NMR-spectra and bond systems of A-D are discussed.Key words: Pyridinethiones; sodium N-chlorobenzenesulfonamides; N-phenylsulfonyl-S-pyridylidenesulfimides; N,N'-bis(phenylsulfonyl)-S-pyridiniosulfodiimidates; N-pyridylidenebenzenesulfonamides; polarity of sulfur bonds.

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