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

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

1974-10-16

1977-02-15

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260239BE, 260239BF, 260269, 260287R, 2603191, 260465E, 260510, 260518R, 260519, 260558A, 1951035C, C07C14364, C07C14356

Patent

active

040082679

ABSTRACT:
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.

REFERENCES:
patent: 3496225 (1970-02-01), Logan et al.
patent: 3506580 (1970-04-01), Rubinfeld et al.
Gilbert, "Sulfonation and Related Reactions" pp. 164 - 171 (1965).

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