Reducible compounds and analytical compositions, elements and methods utilizing same
US4857271A · kind A · utility
10Cited by
14References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1986 |
| Grant date | Aug 15, 1989 |
| Priority date | — |
| Expiry date | Jan 31, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/903
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Certain reducible compounds are useful in analytical compositions, elements and methods, e.g. for assays of bacterial cells. These compounds comprise a moiety which provides a detectable species (e.g. a dye) when released from the compound in an environment of pH 9 or less (i.e. physiological pH). Structurally, the reducible compounds are aromatic derivatives or quinones having suitable substituents which promote varying amounts of moiety release at physiological pH. When reduced at about pH 7, the preferred compounds release at least 50% of the available detectable species within 30 minutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.