34915-18-9

Upstream product

• 88-75-5 2-hydroxynitrobenzene 
• 6309-67-7 N,N'-(3,3'-dihydroxy-biphenyl-4,4'-diyl)-bis-acetamide 
• 34939-19-0 γ.γ'-(4.4'-Diacetamido-3.3'-biphenylendioxy)-dibuttersaeure-dimethylester 
• 34915-19-0 γ.γ'-(4.4'-Diacetamido-3.3'-biphenylendioxy)-dibuttersaeure 
• 67858-00-8 4-(2-nitrophenoxy)butanoic acid 

Relevant academic research and scientific papers

3,3'-Di(sulfonyloxy-group-containing)substituted benzidine derivatives

Disclosed are benzidine derivatives substituted in each of the 3,3'-positions by the substituent STR1 wherein W is hydrogen or an alkali metal, the subscript n is zero when A is the divalent branched chain alkylene having from 2 to about 7 carbon atoms, and n is one when A is straight chain divalent alkylene with 3 or 4 carbons. Also disclosed are the corresponding derivatives wherein the sulfonyl group is replaced by the carbonyl group. Further disclosed are chromogen-reactive indicator compositions having as their chromogen constituent one of the foregoing benzidine derivatives. These compositions (1) are useful to test for a substance for which there exists a specific oxygen-oxidoreductase, such as a sugar, an amino acid, uric acid, and the like, and thus (2) contain also a peroxidase, a hydrogen-peroxide-oxidoreductase, and a specific oxygen-oxidoreductase for the specific material in the testing of which the composition is to be used.