71results about "Triarylmethane dyes" patented technology

Disclosed herein is a microcavity and patterns thereof comprising a photoluminescent material positioned between two reflectors, wherein the photoluminescent material comprises a cationic molecular dye, a macrocyclic anion receptor host, and an anion embedded within the macrocyclic anion receptor host and methods of making and using the same.

The present invention relates to dyes with pH-dependent absorption and fluorescence for pH detection and their applications in biology, medicine and theranostic. In particular, the present invention relates to compounds of the general formulae (I) - (IV), that show pH dependent absorption and fluorescence spectra as well as pH dependent fluorescence quantum yield, methods for their preparation and their application as pH-sensors and labeling groups for the detection of analytes.

The purpose of the present invention is to provide: a photochromic compound having excellent temperature dependency and an excellent color fading speed; a naphthol derivative that can be an intermediate for the photochromic compound; and a curable composition, an optical article, a lens, and an eyeglass each including the photochromic compound. An embodiment of the present invention provides a photochromic compound having a skeleton represented by formula (1). In formula (1), M is C, Si, or Ge. Ring A is a substituted or unsubstituted aromatic ring, a substituted or unsubstituted aromatic heterocyclic ring, or a substituted or unsubstituted condensed polycyclic ring in which an aromatic ring or an aromatic heterocyclic ring and the substituted or unsubstituted aromatic ring or the substituted or unsubstituted aromatic heterocyclic ring are condensed. Z1 is a group represented by formula (1a) or a group represented by formula (1b).

Sulfonate-containing water-solubilizing peptides are provided. Such water-solubilizing peptides can be attached to, for example, a dye or a tandem dye to increase the solubility thereof. Also provided are methods of using the dyes that include the water-solubilizing peptides, as well as kits that include such dyes.

To provide a color filter excellent in light resistance.SOLUTION: A color filter according to the present invention includes pigment and binder, and has chloride ion content of 10 ppm or more and 400 ppm or less.SELECTED DRAWING: None

Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I):or a stereoisomer, tautomer or salt thereof, wherein R1, R2, R3, R4, R5, L1, L2, L3, L4, M, m and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

Hydrocarbon enhanced ionophore-based ion-selective optodes (ISOs) and methods of their use are provided. The ISOs exhibit improved ultrasensitive ion sensing due to the addition of ultralow-polarity hydrocarbons to the sensing phase using specific ratios of sensing phase components. The ISOs can be operated under an exhaustive or non-exhaustive extraction response mode.

The present invention relates to a non-fluorescent compound that is useful as a quencher for a fluorescent compound exhibiting emission properties at an excited energy level, and to various applications thereof.

The purpose of the present invention is to provide: a photochromic compound having excellent temperature dependence and fading speed; a phenol derivative that can be used as an intermediate of the photochromic compound; a curable composition containing the photochromic compound; an optical article; according to one embodiment, a photochromic compound having a skeleton represented by formula (1) is provided. In formula (1), M is C, Si, or Ge. Ring A is a substituted or unsubstituted aromatic ring, a substituted or unsubstituted aromatic heterocyclic ring, or a substituted or unsubstituted fused polyring in which an aromatic ring or an aromatic heterocyclic ring is fused to these rings. Z1 represents a group represented by formula (1a) or a group represented by formula (1b).

The present application relates to a kind of fluorine-containing fluorane compound, light-resistant thermosensitive dye and preparation method and application, belong to fine chemical technology field, solve the problem of insufficient light resistance of existing thermosensitive dye heat-sensitive material.The fluorane compound of the present application contains fluorine in molecular structure.Preparation method includes the following steps: step 1: 2-(2-hydroxy-4-diethylaminobenzoyl) benzoic acid, 3,5-bistrifluoromethylphenol and mixed strong acid are added to reaction vessel, condensation reaction occurs;Step 2: cooling, organic solvent is added to the reaction system, then slowly add alkaline solution, heating reflux stirring, ring-closing reaction occurs, to obtain reaction liquid;Step 3: the reaction liquid is separated, to obtain organic phase, water washing to neutral, separation, collect the organic phase of neutral, remove organic solvent by distillation under reduced pressure, dry, to obtain fluorine-containing fluorane compound solid.

Provided are an additive composition for lubricating oil and a method for using the same. 【Solution means】 The present invention relates to (A) a (per)fluoropolyether polymer [PFPE polymer add having a first chain end and a second chain end respectively bonded to both ends of a (per)fluoropolyether chain [PFPE chain add , wherein at least one (per)fluoropolyether polymer [PFPE polymer add contains a first chain end having a group of the formula -C(O)NR a R b (wherein R a and R b are each independently selected from hydrogen, a linear or branched C1-C6 alkyl group), and the second chain end is a C1-C6 (per)fluoroalkyl group, -CF2C(O)CF3, and -C(OH)2CF3, -C(O)NR a R b (wherein R a and R b are each independently selected from hydrogen, a linear or branched C1-C6 alkyl group), -C(O)OR c (wherein R c is a linear or branched C1-C6 alkyl group), and relates to an additive composition containing at least one (per)fluoropolyether polymer [PFPE polymer add ; and (B) a fluorescent dye of the formula (I) (e.g., a rhodamine dye) in an amount of 0.01 to 25.0% by weight based on the weight of component (A). The present invention also relates to the use of the additive composition in a mixture with a hydrogenated or fluorinated lubricating oil. This additive composition can impart both rust prevention properties and fluorescent properties to the lubricating oil.

The present disclosure provides methods for identifying a hydrocarbon fuel, such as the presence and / or amounts of marker compounds having a fluorescence intensity and, through correlation, the presence and / or amounts of additive package(s) within the hydrocarbon fuel.

This specification provides biotechnology reagents containing poloxamer excipients. In particular, haloalkane-conjugated fluorophores are provided in solutions or lyophilized formulations containing poloxamer, enabling storage, accurate distribution / measurement, reconstitution, and addition to complex biological samples without the need for organic solvents.

A composition includes a functionalized fluorescent dye. The functionalized fluorescent dye includes an isothiocyanate-containing dye functionalized with a functional group. The functional group includes an aromatic compound with a primary amine. The functionalized fluorescent dye can be mixed with a fluid to form a tracer fluid for tracing fluid flow in a subterranean formation.

The invention relates to improved methods for using fluorescence-based probes which are optimized to have a quasilinear response in the pH range which is physiologically relevant for mitochondria to measure mitochondrial pH, various mitochondrial metabolism parameters, and drug efflux capacity. These probes can be 5 used to measure the functional parameters of mitochondria of any cell type, based on the measurement of mitochondrial pH and its changes upon various mitochondrial metabolism stimuli and inhibitions.

This invention relates to non-fluorescent compounds useful as quenchers for fluorescent compounds that exhibit luminescence properties at excitation energy levels, and to various applications thereof.

The photochromic cyclic compound of the present invention is represented by Formula (1) below:in the formula, L is a divalent bridging group and PC is a divalent T-type photochromic basic structural group having a naphthopyran structure, where one end of the bridging group L is bonded to at least the 3-position of the naphthopyran structure.

The purpose of the present disclosure is to provide: a photochromic compound having excellent temperature dependency and an excellent color fading rate; a phenol derivative that can be an intermediate for the photochromic compound; and a curable composition, an optical article, a lens, and an eyeglass, each containing the photochromic compound. An embodiment of the present invention provides a photochromic compound having a backbone represented by formula (1). In formula (1), M represents C, Si, or Ge. Ring A is a substituted or unsubstituted aromatic ring, a substituted or unsubstituted aromatic heterocyclic ring, or a substituted or unsubstituted condensed polycyclic ring obtained through fusing, to either of said rings, an aromatic ring or an aromatic heterocyclic ring. Z1 represents a group represented by formula (1a) or a group represented by formula (1b).

A latent additive represented by general formula (1): wherein A is a 5- or 6-membered aromatic or heterocyclic ring; R1 and R2 are each hydrogen, halogen, cyano, hydroxyl, nitro, carboxyl, optionally substituted C1-C40 alkyl, C6-C20 aryl, C7-C20 arylalkyl, or C2-C20 heterocyclic ring-containing group; and R4 is C1-C20 alkyl, C2-C20 alkenyl, C6-C20 aryl, C7-C20 arylalkyl, C2-C20 heterocyclic ring-containing group, or trialkylsilyl.

To reduce the viscosity of a coloring composition containing a pigment.SOLUTION: The coloring composition contains a compound represented by formula (I), and a pigment. [In formula (I), L1 represents a group represented by formula (ph1); R1 to R4 each independently represent a hydrogen atom, a hydrocarbon group that may have substituents, a heterocyclic group, -SO3 N(R5)4, a cyano group, or a halogen atom, provided that at least one of R1 to R4 is -SO3 N(R5)4, or a hydrocarbon group having one or more -SO3 N(R5)4 groups as substituents; and R5 represents a hydrogen atom or a hydrocarbon group, where multiple occurrences of R5 may be identical or different.]SELECTED DRAWING: None

The application discloses application of a fluorane-based discoloring dye in improving material light resistance, and belongs to the technical field of fine chemical industry.The application provides a series of fluorane-based discoloring dyes containing different electron-withdrawing groups, and the series of discoloring dyes has good light resistance performance.Therefore, the application mainly designs a fluorane dye containing electron-withdrawing substituents, that is, on the basis of an existing fluorane dye parent structure, electron-withdrawing groups such as nitro, fluorine, chlorine, bromine and iodine are introduced, the electron-withdrawing performance of the electron-withdrawing groups is utilized, the electron cloud distribution state of the dye molecular structure is changed, and the light resistance performance is improved.

Using nucleotide architectures to very closely and precisely place chromophores on a nucleic acid template to form dye aggregates that produce quantum coherent excitons, biexcitons, and triexcitons upon excitement to create excitonic quantum wires, switching, and gates that would then form the basis of quantum computation. Creating the various excitons and controlling the timing of the excitons would be performed using light of the corresponding wavelength and polarization to stimulate the corresponding chromophores.

The invention relates to a triarylmethane dye and application thereof, and belongs to the technical field of dye compounds. By designing the structure of the triarylmethane dye, the dye compound with relatively good thermal stability and relatively high transmittance is obtained, and the optical filter prepared from the triarylmethane dye has excellent comprehensive performance.

The present disclosure relates, in general, to novel and easily accessible fluorescent compounds with improved fluorescence properties for expanding the multiplexing capabilities of fluorescence-based nucleic acid detection technologies, as well as to novel methods of producing the same. Moreover, conjugates, PCR probes and FRET pairs comprising these fluorescent compounds as well as methods for amplification and detection of a target nucleic acid utilizing these fluorescent compounds and methods of labeling are also provided.

The application belongs to the technical field of fine chemical industry, and particularly relates to a method for improving the purity of a heat-sensitive dye ODB-2. The segmented controlled nitrogen pressurization ODB-2 crystallization technology provided by the application realizes efficient improvement of the purity of ODB-2 products through five steps of feeding, temperature rising, pressurization, crystal precipitation and crystal growth, can efficiently remove impurities generated in the crude ODB-2 due to sulfonation, ring-opening reaction and the like, overcomes technical bottlenecks such as difficult separation of complex impurities, low purity, and a large amount of organic solvent stirring and washing in the existing ODB-2 preparation process, and the purity of the obtained ODB-2 product reaches 99.8%. The method is simple to operate, reduces production cost, provides a new way for industrialized preparation of high-purity heat-sensitive dye ODB-2, and has remarkable economic benefits.

A small molecule ionic isolation lattice (“SMILES”)-doped polymeric gain media for use in solid state dye lasers. The SMILES-doped polymeric gain media can comprise a polymer component and a SMILES component. The SMILES component can include a dye element, a counterion element, and a receptor element. In some exemplary embodiments, the SMILES composite can include the following formula: a (dyem+)x·(counterionn)y·(receptor)z, wherein values of m, n, x and y may be integers greater than or equal to 1.