Sulfoethylaminosulfonyl substituted disazo dyes

Details Sulfoethylaminosulfonyl substituted disazo dyes Sulfoethylaminosulfonyl substituted disazo dyes

1980-10-23

1985-12-10

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534591, 534734, 534797, 534817, C09B 3526, C09B 6283, D06P 324, D06P 326

Patent

active

045581215

ABSTRACT:
The invention provides novel symmetrical and unsymmetrical disazo dyes which in the form of the free acid have the formula I ##STR1## wherein each R independently of the other represents hydrogen or an alkyl group of 1 to 4 carbon atoms,

REFERENCES:
patent: 1538934 (1925-05-01), Geller
patent: 3657218 (1972-04-01), Gnad
patent: 3709870 (1973-01-01), Wolfrum
patent: 3951944 (1976-04-01), Fuchs
Siegel, E., "The Chemistry of Synthetic Dyes," vol. VI, pp. 53-69, (See pp. 53-54 and 59-60).

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