Diaminofluorescein derivatives
US6569892B2 · kind B2 · utility
19Cited by
2References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 8, 2002 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | May 8, 2022 |
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: wherein R1 and R2 represent amino groups 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 wherein R3 represents hydrogen atom or an alkyl group and R4 represents 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.