Process for the preparation of aromatic azo-compounds
US7091327B2 · kind B2 · utility
0Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2003 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Oct 5, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S534/05
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the preparation of aromatic azo-compounds, in particular 3,3′-azo-bis(6-hydroxybenzoic acid) (olsalazine) and its salts and derivatives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.