Abstract:
Benzofuran-2-ones, compositions comprising benzofuranones, processes for preparing them, and their use as colorants for high or low molecular mass organic material.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for determining the presence of immobilized nucleic acid, by employing: unsymmetrical cyanine dyes that are derivatives of thiazole orange; a staining solution; and carefully-selected fluorogenic compounds that are characterized as being essentially non-genotoxic. SOLUTION: The method includes processes of: immobilizing nucleic acid, single or double stranded DNA, RNA or a combination thereof, on a solid or semi-solid support; contacting the immobilized nucleic acid with an unsymmetrical cyanine dye compound; and then illuminating the immobilized nucleic acid with an appropriate wavelength whereby the presence of the nucleic acid is determined. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a labeling reagent, a labeled target, and a method for preparing the labeling reagent. SOLUTION: This labeling reagent can take a form of a cyanine pigment, a xanthene pigment, a porphyrin pigment, a coumarin pigment, or a complex pigment. The labeling reagents are useful for labeling a probe including a nucleic acid or a protein, or a target. The reagents can be applied usefully to a measuring method based on a protein and nucleic acid probe, and can be applied also to a real-time detection method. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide asymmetric cyanine dyes containing substituted benzazolium ring systems, and to provide the preparation and use of fluorescent stains for nucleic acids. SOLUTION: For example, an asymmetric cyanine dye represented by the formula. The asymmetric cyanine dye has higher sensitivity to oligonucleotides and larger nucleic acid polymers in a wide range of cells and gels, and is useful in analysis of cell structure, membrane integrity or function, and in the determination of cell periodic distribution. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide new intermediates having an indolenine nucleus which are useful in the synthesis of fluorescent sulfoindocyanine dyes. SOLUTION: New intermediates having an indolenine nucleus which are useful in the synthesis of fluorescent sulfoindocyanine dyes are disclosed. Dyes synthesized using such intermediates do not contain a reactive group which will covalently attach to a target molecule at an amine- or hydroxy-containing site. Rather, these intermediates are linked to an enzyme substrate or a member of a specific bonding pair. Also included are tyramide-containing sulfoindocyanine dyes. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a fluorescent dye having a favorable permeability through a cell membrane which is used for detecting a nucleic acid. SOLUTION: The present invention discloses the manufacture and the use of a fluorescent dye used for dying a nucleic acid, wherein the dye comprises a substituted benzazolium ring system having at least one substituent of a saturated or unsaturated cyclic substituent bonded to a pyridinium or quinolinium ring system by a methine crosslinkage. By virtue of an excellent fluorescence property of the dye which forms a complex with a nucleic acid, the dye can be used for detecting an oligonucleotide and the nucleic acid in a cell, gel or solution. By comprising a cyclic substituent, the permeability of the dye into cells and gels in a wide range can be improved and consequently, the detection of the nucleic acid by the dye can be improved. The combination of the dye with an additional dye enables the perfection of a cell membrane, and also enables the gram-sign or the structure and function of a cell to be analyzed. COPYRIGHT: (C)2006,JPO&NCIPI