1,3-Dihydroxybenzene derivatives and colorants containing said compounds
1,3-Dihydroxybenzene derivatives of general formula (I) or (Ia) or physiologically tolerated, water-soluble thereof wherein R′1 denotes substituted pyridyl group, a pyrimidyl group, a group of formula (IIa) or (IIIa) and the dyeing agents for keratin fibers containing these compounds.
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(2008/06/13)
Means and method for dying keratinic fibers
Composition for coloring keratin fibers based on a developer-coupler combination characterized in that it contains as the coupler 3-(2,4-diaminophenoxy)-1-propanol and as the developer a p-phenylenediamine derivative monosubstituted on the benzene ring and having general formula (I) ?and/or a 4,5-diamino-1H-pyrazole derivative of general formula (II) ?and/or a p-aminophenol derivative of general formula (III) ?as well as a method for the oxidative coloring of hair, and the use of said composition.
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(2008/06/13)
Agent and method for colouring keratin fibres
The present application relates to a preparation for dyeing keratin fibers which, before use, is mixed with an oxidizing agent and wherein a combination of at least one 4,5-diaminopyrazole derivative of the general formula (II) or its physiologically compatible salts and at least one phenylurea derivative of the general formula (I) or its physiologically compatible salts is contained in a suitable cosmetic carrier, as well as a method for dyeing hair using this preparation.
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(2008/06/13)
Aminopyrazoles
The present invention relates to compounds, compositions and methods for inhibiting nonenzymatic cross-linking (protein aging). Accordingly, a composition is disclosed which comprises aminopyrazoles capable of inhibiting the formation of advanced glycosylation endproducts of target proteins by reacting with the carbonyl moiety of an early glycosylation product of such target proteins formed by their initial glycosylation. The method comprises contacting the target protein with the composition. Both industrial and therapeutic applications for the invention are envisioned, as food spoilage and animal protein aging can be treated.