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75390-42-0

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75390-42-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75390-42-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,3,9 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 75390-42:
(7*7)+(6*5)+(5*3)+(4*9)+(3*0)+(2*4)+(1*2)=140
140 % 10 = 0
So 75390-42-0 is a valid CAS Registry Number.

75390-42-0Relevant articles and documents

The Reaction of N-Sulfinylamines with Isocyanides and Sythesis of 2,5-Diaryl-3,4-diarylimino-1,2,5-thiadiazolidin-S-oxides

Beckert, R.,Mayer, R.

, p. 273 - 280 (2007/10/02)

N-Sulfinylamines 1 react with isocyanides 2 to give isocyanates 3, isothiocyanates 6, and especially 2,5-diaryl-3,4-diarylimino-1,2,5-thiadiazolidin-S-oxides 7.This new heterocyclic ring system 7 can also be sythesized in high yields by a cyclization reaction tetraarylated oxalic amidines 9 with thionyl chloride.The acid catalyzed hydrolysis of the heterocyclic compounds 7 leads to oxalic anilides 8, the hydrolysis with alkali forms amidines 9.The amidine 9a reacts with N-sulfinyl-p-toluenesulfonamide 11 to give an open chained adduct 12.

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