Diaminofluorescein derivative
US5874590A · kind A · utility
16Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1997 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Oct 17, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B11/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound useful for the measurement of nitrogen monoxide under a substantially neutral condition which is represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 represent amino groups that substitute at adjacent positions on the phenyl ring; R.sup.3 and R.sup.4 independently represent a hydrogen atom or an acyl group; R.sup.5, R.sup.6, R.sup.7, and R.sup.8 independently represent a hydrogen atom, a C.sub.1-6 alkyl group, allyl group, or a halogen atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.