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C18H12(2)H8N2O3S is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

557794-41-9

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557794-41-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 557794-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,7,7,9 and 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 557794-41:
(8*5)+(7*5)+(6*7)+(5*7)+(4*9)+(3*4)+(2*4)+(1*1)=209
209 % 10 = 9
So 557794-41-9 is a valid CAS Registry Number.

557794-41-9Downstream Products

557794-41-9Relevant academic research and scientific papers

Synthesis of deuterated 4, 4′-diaminodiphenylsulfone (Dapsone) and related analogs

Gannett, Peter M.,Johnson II, Edward M.,Grimes, Michael A.,Myers, Alan L.,Deavers III, Robert E.,Tracy, Timothy S.

, p. 107 - 114 (2007/10/03)

A general scheme tor the synthesis ot 4,4′-diaminodiphenylsulfone-d5 (Dapsone) from aniline-d5 is described. The method may have general application and the preparation of the related analogs, 4,4′-dimethylaminodiphenyl sulfone from aniline-d5 and 4,4′-dimethoxydiphenyl sulfone from phenol-d5, is also described. Copyright

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