Substituted p-aminophenol, process of preparation and use in dyeing hair
US5980584A · kind A · utility
7Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Nov 3, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C215/78
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The novel primary intermediate, 1-(5-amino-2-hydroxyphenyl)ethane-1,2-diol and a method for producing same, are disclosed. The novel intermediate can be employed as a replacement for p-aminophenol in oxidation dye formulations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.