4,4-dihydroxy-5-pyrazolinones and cosmetic/dermatological compositions comprised thereof
US5958382A · kind A · utility
4Cited by
0References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D231/28
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel 4,4-dihydroxy-5-pyrazolinones having the structural formula (I): ##STR1## and cosmetic/dermatological formulations comprised thereof are useful for artificially coloring, e.g., tanning/browning, human skin and/or hair, and are well suited for imparting a healthy appearance to facial skin by enhancing the radiance of the complexion, while at the same time retaining transparency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.