55results about "Hydrazone dyes" patented technology

A structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film.

A structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film.

Fluorescent Schiff base compounds comprising a xanthene dye based moiety and an alkyl imidazole moiety. Methods of assessing these fluorescent Schiff base compounds as fluorescent probes for metal ions in Cu2+ chemosensing applications, methods of preparing the fluorescent Schiff base compounds and methods of detecting Cu2+ ions with the same are also provided.

A processes for preparing structured organic film (SOF) comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film by reaction of a pre-SOF.

The present invention provides systems and methods for production of activatable diazo-derivatives for use in labeling nucleotides. Labeling nucleotides is accomplished by contacting a stable hydrazide derivative of a detectable moiety with an activating polymer reagent which is used to directly label the nucleotide sample. Labeling occurs on the phosphate backbone of the nucleotide which does not perturb hybridization of the labeled nucleotide with its anti-sense strand. Since the method involves direct labeling, all types of nucleotides can be labeled without prior amplification or alteration.

A structured organic film with an added functionality comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film.

The present subject matter relates to AIE luminogens for visualization and treatment of cancer, particularly AIE luminogenic probes for cancer cell visualization and discrimination, lysosome-targetingAIEgens for imaging and autophagy visualization, highly fluorescent AIE-active theranostic agents for monitoring drug distribution and having anti-tumor activity to specific cancer cells, probes comprising AIE luminogens for cancer cell imaging and staining, AIE luminogens having clusteroluminogenic features and applications thereof, and methods of preparing thereof.

A structured organic film with an added functionality comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film.

The invention discloses a hypochlorite ion fluorescence probe, a preparation method and an application thereof. The hypochlorite ion fluorescence probe can be used for detecting hypochlorite ion content in environment, fluorography of hypochlorite distributed in a biological sample and content detection. The fluorescence probe has fluorescence response by comparing with hypochlorite, and has no reaction to other various reactive oxygen species (ROS) such as H2O2, NO<.>, <.>O2<->, ONOO<->, ROO<.>, <1>O2 and <.>OH, and has good selectivity and specificity. The preparation method of the probe has the advantages of easy and simple process, and easy large-scale production. According to the invention, a structure of the probe is shown as the following; and the preparation method is characterized in that fluorescein signal-aldehydes and hydrazinopyridines are reacted in an ethyl alcohol solution to generate the hypochlorite ion fluorescence probe.

Disclosed herein are embodiment relating to a methods of obtaining a functionalized porous or fibrous solid substrate with the chemical and / or physical properties of a nano-structured molecular or polymer chemical compound that contains it. In accordance with some example embodiments, the properties of the starting substrate may be modified to obtain a new functionalized substrate. The new substrate may have various applications, such as, for example, an optical- and / or fluorescent-type chemical sensor, as a chemical sequestrator, or as a modifier of the properties of a surface, making it, for example, superhydrophobic.

The invention discloses a pyrrolidine double-fluorine-boron strong fluorescent dye and a preparation method and application thereof, wherein the structure is as shown in formula (1), R1, R2 and R3 areH or C1-C6 linear or branched alkyl group, R5 is H, Cl, xylylene group, nonane group, benzene ring group, OR9, NR9R10, or SR9. R4, R6, R7 and R8 are each independently H, C1-C6 linear or branched alkyl, C1-C6 linear or branched cycloalkane group; wherein R9 and R10 are each independently H, CH2COOEt, oxo group, xylyl group, C1-C6 linear or branched alkyl or C1-6 linear or branched cycloalkane group; the pyrrolidine double-fluorine-boron strong fluorescent dye has the advantages of up to 998 GM double-photon absorption cross section at 700-900nm, high molar absorption coefficient, high fluorescence quantum yield, high light stability and double photon fluorescence and the like.

An ink set contains a first ink containing a compound in which a pyrazolone ring and a thiazole ring are bonded and a second ink containing a compound in which a pyrazolone ring and a pyridinedione ring are bonded. A thermal transfer recording sheet has a first ink layer containing a compound in which a pyrazolone ring and a thiazole ring are bonded and a second ink layer containing a compound in which a pyrazolone ring and a pyridinedione ring are bonded.

The invention discloses a carboxamide type dye which has an azo structure and is used for dyeing polylactic acid fibre. The molecular structure contains a carboxamide group; the general structural formula of the dye is shown above. In the formula, D is a chromogen with the azo structure; m is 1 or 2; X is H or n-CnH2n+1; Y is H, n-CnH2n+1, C6H12 or C6H6; and in the n-CnH2n+1, n meets the following condition: n is more than or equal to 1 and less than or equal to 18,,and n is an integer. The invention simultaneously discloses a method for preparing the dye. The dye is used to improve the rate of dye-uptake and color fastness on the PLA fibre.

Provided are a novel hydrazide chelate complex compound which is excellent in terms of both solubility in a coating solvent and light fastness, which can be used for blue laser recording, and which is useful as a dye for forming a recording layer of an optical recording medium, the hydrazide chelate complex compound being represented by general formula (1) below; and a dye for forming a recording layer of an optical recording medium, the dye containing the compound.In general formula (1), ring A represents an aromatic ring; R1 and R6 each represent an aromatic ring group or a monovalent nonaromatic ring substituent having 20 or less carbon atoms; R2 to R5 each represent a hydrogen atom, an aromatic ring group, or a monovalent nonaromatic ring substituent having 20 or less carbon atoms; n represents 0 or 1; a represents an integer of 1 to 3; M represents a transition metal atom; and X represents an atom of Groups 14 to 16 of the periodic table.

A method of assessing body odor using as an index an indicator material comprising an alcohol compound having a mercapto group at the 3-position represented by the following formula (2) and / or a substance that is a derivative of an alcohol compound having a mercapto group at the 3-position, wherein an atom(s) or an atom group(s) is introduced to a mercapto group and / or a hydroxyl group of an alcohol compound having a mercapto group at the 3-position represented by the formula (2):

Disclosed is a novel hydrazide chelate complex compound excellent in both solubility in a coating solvent and light resistance, which is applicable to a blue laser recording and useful as a dye for forming a recording layer of an optical recording medium. The hydrazide chelate complex compound is represented by the general formula (1) below. Also disclosed is a dye for forming a recording layer of an optical recording medium, which contains this compound. (1) In the formula, ring A represents an aromatic ring; R<1> and R<6> respectively represent an aromatic ring group or a monovalent non-aromatic ring substituent having 20 or less carbon atoms; R<2>-R<5> respectively represent a hydrogen atom, an aromatic ring group or a monovalent non-aromatic ring substituent having 20 or less carbon atoms; n represent 0 or 1; a represents a number of 1-3; M represents a transition metal atom; and X represents a group 14-16 element atom of the periodic table.

The invention relates to a coloring agent for an in vitro diagnostic device, in particular to a pigment generated through chemical oxidoreduction reaction, which can be used for quantitatively detecting biochemical substances in blood. A precursor of the coloring agent is easily combined with aromatic amines or aromatic alcohols, and the stable pigment is generated in hydrogen peroxide and oxygen environments, and cannot be interfered by protoheme in specific wavelength ranges.

An optical film includes: a transparent substrate; and a colored layer laminated on at least one side of the transparent substrate, the colored layer containing a dye (A), the dye (A) containing a colorant having a wavelength of maximum absorption in the range of 470 nm to 530 nm, the colorant containing a dipyrromethene cobalt complex having a structure represented by formula (I), in which R1 to R7 are combined such that a free energy change between before and after the reaction, calculated by applying R1 to R7 in the formula (I) to a predetermined reaction formula (II) using a quantum chemical calculation program Gaussian 16 with a calculation method B3LYP and a basis function 6-31G (d,p) (however, a basis function LanL2DZ is assigned to elements having an atomic number greater than that of Kr in the periodic table), is 0.92 kcal / mol or greater.

The present invention relates to a colorant for hair dyeing containing a compound represented by the following general formula (I), a composition for hair dyeing containing the same, and a hair dyeing method:(in the formula, R1, R2 and R3 each independently represent a hydrogen atom, a linear or branched alkyl group having from 1 to 6 carbon atoms, or a linear or branched alkoxy group having from 1 to 6 carbon atoms, and An− represents an inorganic anion or an organic anion).

An ink set contains a first ink containing a compound in which a pyrazolone ring and a thiazole ring are bonded and a second ink containing a compound in which a pyrazolone ring and a pyridinedione ring are bonded. A thermal transfer recording sheet has a first ink layer containing a compound in which a pyrazolone ring and a thiazole ring are bonded and a second ink layer containing a compound in which a pyrazolone ring and a pyridinedione ring are bonded.

The invention discloses a pyrrole hydrazone hydrazine difluoroboron hyperfluorescence dye and a preparation method thereof. The structure of the pyrrole hydrazone hydrazine difluoroboron hyperfluorescence dye is expressed as a general formula (1) which is as shown in the description, wherein R1, R2 and R3 are H or C1-C6 straight-chain or branched-chain alkyl; R5 is H, Cl, a thiophene group, a furan group, a benzene ring group, OR9, NR9R10 or SR9; R4, R6, R7 and R8 are H, C1-C6 straight-chain or branched-chain alkyl and C1-C6 straight-chain or branched-chain naphthene groups independently and separately; R9 and R10 are H, naphthyl, thienyl, C1-C6 straight-chain or branched-chain alkyl or C1-C6 straight-chain or branched-chain naphthene groups independently and separately. The pyrrole hydrazone hydrazine difluoroboron hyperfluorescence dye has the advantages of large molecular plane, high molar light absorption coefficient, high fluorescence quantum yield and highlight stability; meanwhile, the preparation method adopts a one-pot preparation process; and the method is simple. (The formula is shown in the description.).

The invention discloses a hypochlorite ion fluorescent probe, a preparation method and its application, which can be used for detection of hypochlorite ion content in the environment and fluorescence development and content detection of hypochlorite distribution in biological samples. The fluorescent probe of the present invention only has a fluorescence response to hypochlorite, and has no reaction to various other reactive oxygen species (ROS) including H2O2, NO·,·O2‑, ONOOˉ, ROO·, 1O2,·OH, and has good Selectivity and specificity; the probe preparation process is simple and easy to produce on a large scale. The structure of the probe of the present invention is shown in Formula I; its preparation method is as follows: reacting fluorescein monoaldehyde and hydrazinopyridine in an ethanol solution to generate a hypochlorite ion fluorescent probe.

An indicator material for assessing body odor of the present invention comprises at least one member selected from the group consisting of a substance (A) which is a β-hydroxycarboxylic acid compound represented by the formula (1), a substance (B) which is a derivative of the compound represented by the formula (1), a substance (C) which is an alcohol compound having a mercapto group at the 3-position represented by the formula (2),and a substance (D) which is a derivative of the compound represented by the formula (2). The present invention also provides a method of producing the compound represented by the formula (2) by incubating perspiration originated from a human in an environment with an oxygen concentration of 10 v / v % or less. The present invention also provides a kit for assessing body odor of a human, wherein the kit for assessing body odor of a human includes a coloration reagent which reacts with β-hydroxycarboxylic acid originated from perspiration of a human.

Provided is a colored composition suitable for the formation of a colored cured film having both heat resistance and solvent resistance. A colored composition comprises (A) a coloring agent and (B) a polymerizable compound, wherein the coloring agent contains a compound having a structural unit represented by formula (1). [In formula (1), R1 represents a hydrogen atom, a methyl group or a trifluoromethyl group, and R2 and R3 independently represent a hydrogen atom, a halo group or a substituted or unsubstituted hydrocarbon group, wherein R2 and / or R3 represents a halo group or a halo-group-substituted hydrocarbon group; A represents a bivalent group; G represents a bivalent hydrocarbon group or a single bond, wherein the bivalent hydrocarbon group may have a linking group selected from a -O- group, a -S- group, a -CO- group and a -NR7- group between a C-C bond; R7 represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group; Zm+ represents a cationic chromophore; m represents a natural number of 1 to 3; and p represents a natural number of 1 to 8.]

The described invention provides a method for treating an interruption of a cerebral artery in a subarachnoid space at risk of interruption caused by brain injury in a mammal, which reduces signs or symptoms of at least one delayed complication associated with brain injury using a flowable sustained release particulate composition.

Provided is a colored composition suitable for the formation of a colored cured film having both heat resistance and solvent resistance. A colored composition comprising (A) a coloring agent and (B) a polymerizable compound, wherein the coloring agent contains a compound having a structural unit represented by formula (1). [In formula (1), R1 represents a hydrogen atom, a methyl group or a trifluoromethyl group, and R2 and R3 independently represent a hydrogen atom, a halo group or a substituted or unsubstituted hydrocarbon group, wherein R2 and / or R3 represents a halo group or a halo-group-substituted hydrocarbon group; A represents a bivalent group; G represents a bivalent hydrocarbon group or a single bond, wherein the bivalent hydrocarbon group may have a linking group selected from a -O- group, a -S- group, a -CO- group and a -NR7- group between a C-C bond; R7 represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group; Zm+ represents a cationic chromophore; m represents a natural number of 1 to 3; and p represents a natural number of 1 to 8.]