Indicator compounds, method of their preparation and use of those compounds in an iron assay system
US5017498A · kind A · utility
4Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Mar 1, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/91
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is related to compounds of the general formula (I) ##STR1## wherein R.sup.1 denotes hydrogen, halogen or C.sub.1 -C.sub.4 alkyl and PA1 R.sup.2 denotes C.sub.1 -C.sub.4 alkyl, aryl or heteroaryl, or a substituted C.sub.1 -C.sub.4 alkyl, aryl or heteroaryl and their preparation. The compounds can be used in an iron assay system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.