Novel 2-hydroxy-4-aminobenzenes, method for their manufacturing and hair coloring agents containing these compounds

US4588410A · kind A · utility

Assignee

• Wella GmbH · DE

Inventors

• Eugen Konrad · Darmstadt, DE
• Hans-Jurgen Braun · Frielendorf, DE
• Herbert Mager · Freiberg, DE

Key dates

• Filing date: Jul 18, 1983
• Grant date: May 13, 1986
• Expiry date: Jul 18, 2003

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K8/415
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

2-hydroxy-4-aminobenzene are disclosed, useful as oxidative hair coloring substances. These are of the formula ##STR1## wherein R is hydrogen, methyl or hydroxyethel.