Diaminofluorescein derivative
US6441197B1 · kind B1 · utility
11Cited by
1References
11Claims
0Family size
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Key dates
| Filing date | Jan 20, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Jan 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/177692
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound represented by the following formula (I): wherein R1 and R2 represent amino group that substitute at adjacent positions on the phenyl ring, provided that either of R1 and R2 represents a mono(C1-6 alkyl)-substituted amino group and the other represents an unsubstituted amino group; and R3 and R4 independently represent hydrogen atom or an acyl group, and an agent for measurement of nitrogen monoxide which comprises said compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.