The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2009
Filed:
Jul. 07, 2003
Tetsuo Nagano, Tokyo, JP;
Yasuteru Urano, Kanagawa, JP;
Suguru Kenmoku, Tokyo, JP;
Kohjiro Kanda, Saitama, JP;
Tetsuo Nagano, Tokyo, JP;
Yasuteru Urano, Kanagawa, JP;
Suguru Kenmoku, Tokyo, JP;
Kohjiro Kanda, Saitama, JP;
Other;
Daiichi Pure Chemicals Co., Ltd., Tokyo, JP;
Abstract
A fluorescent probe which is represented by the following formula (I): (wherein, Rand Rrepresent hydrogen atom, or a substituent for trapping proton, a metal ion, or an active oxygen species, or the like; Rrepresents a monovalent substituent; Rand Rrepresent hydrogen atom or a halogen atom; Rrepresents hydrogen atom, an alkylcarbonyl group, or an alkylcarbonyloxymethyl group, provided that a combination of R, R, and Rprovides (1) substantially high electron density of the benzene ring to which said groups bind, so that the compound represented by the formula (I) is substantially no fluorescent before the trapping of proton, or the like, and (2) substantially reduced electron density of the benzene ring to which said groups bind, so that a compound after the trapping, which is derived from the compound represented by the formula (I) is substantially highly fluorescent after the trapping of proton or the like). A fluorescent probe having an excellent fluorescence property is provided.