159 results about "Octanoic Acids" patented technology

The invention relates to the technical field of organic synthesis, and particularly discloses a synthesis method of bis-diglycerol polyacyl adipate-2, which comprises the following synthesis steps: S1, stirring and mixing isostearic acid, caprylic capric acid, stearic acid and 12-hydroxystearic acid to obtain total fatty acid; s2, stirring and mixing dipolyglycerol, adipic acid, total fatty acid and an organic tin catalyst, and starting to heat; s3, the initial reaction temperature is controlled to be 140-150 DEG C, the reaction vacuum degree is 0.04 MPa, the heating rate is controlled to be 2-10 DEG C / h in the reaction process, the temperature is increased to 190-210 DEG C, then the reaction vacuum degree is converted into 0.1 MPa, and the heat preservation reaction is conducted for 4-10 h; after the reaction is completed, sampling and measuring an acid value; and S4, after the acid value reaches the standard, carrying out heat preservation reaction for 2-5 hours under a high-vacuum condition, cooling, and filtering to obtain the product. The organic tin catalyst is used, the esterification period is shortened, the conversion rate is increased, and the production cost is reduced.

The invention provides an inorganic silicon hybrid polyurethane primer as well as a preparation method and application thereof, and belongs to the technical field of primer. The primer provided by the invention is prepared from the following raw materials: polyester polyol, polyether polyol, trimethylolpropane, hexamethylene diisocyanate, 3-(phenylamino) propyltrimethoxysilane, ethyl acetate, xylene, an antioxidant, a light stabilizer, stannous octoate and a catalyst. An isocyanate-terminated polyurethane prepolymer is selected as a base material, a silane hybrid structure is introduced, a Si-O-Si network is formed after silane is hydrolyzed, the Si-O-Si network and Ca < 2 + > in concrete form a coordinate bond, and meanwhile, an isocyanate group reacts with water to generate a urea bond to reinforce anchoring. According to the primer disclosed by the invention, through a chemical-physical synergistic effect, the technical problem of bonding failure of a floating dust hardened layer is systematically solved, and an innovative solution is provided for long-acting sealing of a concrete joint.

The application discloses a method for preparing 6-hydroxy-8-chlorooctanoic acid ethyl ester by hydrogenation reduction of 6-carbonyl-8-chlorooctanoic acid ethyl ester. The carbonyl group of 6-carbonyl-8-chlorooctanoic acid ethyl ester is reduced to a hydroxyl group through a catalytic hydrogenation reduction reaction under high pressure, so that 6-hydroxy-8-chlorooctanoic acid ethyl ester is obtained. In the reaction process, strong acid, strong base and toxic substances are not involved, the catalyst used can be repeatedly used, the required equipment is not high, the process is simple, the obtained product has high purity and yield, and the method is favorable for large-scale production of enterprises, and provides a new preparation method which is simple and easy to realize, safe and stable, green and environmental protection, low in production cost and high in efficiency, and is suitable for the prior art and actual production.

The invention discloses weather-resistant and medium-resistant alkyd resin varnish and a preparation method thereof. The varnish is prepared from the following raw materials: modified alkyd resin, a composite drier, zirconium iso-octoate with the purity of 12%, an anti-skinning agent, 200 # solvent oil and xylene. The modified alkyd resin is prepared from the following raw materials: soya oil acid, pentaerythritol, benzoic acid, pyrrolidine-2-one-1-acetic acid, dimethylbenzene and a 200 # solvent. According to the invention, pyrrolidine-2-ketone-1-acetic acid is used as a binary acid component to partially or completely replace traditional phthalic anhydride, so that the reaction efficiency of alkyd resin synthesis can be improved, and the problems of yellowing, pulverization and poor water resistance of traditional alkyd resin can be solved; according to the varnish prepared by the invention, on the basis of maintaining the inherent gloss, flexibility and constructability of alkyd resin, the key properties such as weather resistance, water resistance and acid resistance are improved; the whole preparation process of the varnish continues to use mature alkyd resin production equipment and flow, and has good economical efficiency and industrial popularization prospects.

Methods improve cognitive functioning, for example, at least one of episodic memory, executive function, or language skills; supporting memory and / or recall; providing energy and / or ketones to the brain; and / or preventing and / or treating mild cognitive impairment (MCI) in an individual. A composition comprising medium chain triglycerides (MCTs) can be administered to the individual in a daily dosage providing from about 15 g to about 45 g MCTs. The MCTs can include from about 51 wt % to about 90 wt % of octanoic acid. The daily dose can be provided in at least two servings, for example, 2 or 3 servings. Each serving can provide about 15 g MCTs and can include octanoic acid and decanoic acid in a weight ratio of, for example, about 60:about 40. The individual can be 65 years or older and / or have mild cognitive impairment (MCI).

A lubricating fluid composition comprising i) a diester of polyethlene glycol esterified with a mixture of octanoic and deconoic acid where the polyethylene glycol may have 2-12 ethylene units and ii)

Double-layer composite microcapsules suitable for asphalt surface layers that are both self-repairing, have high energy storage, and are resistant to ice and snow, as well as their preparation method and application, relate to a microcapsule preparation method and its application. The invention aims to address the technical problems of existing self-repairing microcapsules for asphalt pavements, such as poor core material release and self-healing effects, unstable shell wall materials, low thermal conductivity, easy leakage, and single functionality. The double-layer composite microcapsules of the present invention are composed, from the inside to the outside, of an inner phase-change microcapsule core, an inner phase-change microcapsule shell, an outer self-repairing microcapsule core, and an outer self-repairing microcapsule shell; the inner phase-change microcapsule core is prepared using n-octanoic acid and tetradecane; the inner phase-change microcapsule shell is prepared using carbon nanotubes and a double polymer; the outer self-repairing microcapsule core is prepared using bio-oil and carbon nanotubes; and the outer self-repairing microcapsule shell is prepared using carbon nanotubes and a double polymer. Compared to ordinary asphalt pavement, the healing index of the asphalt pavement surface layer prepared using the double-layer composite microcapsules is increased by 8.1% to 26.3%. It can be used in the highway field.

This invention discloses a compound, octanoic acid 4-methyl-5-thiazole ethyl mercaptan ester, with the specific chemical structure shown below: The aromatic compound is mainly used in food flavorings.

The invention discloses a PCI postoperative MACE risk prediction marker for an acute ST segment elevation type myocardial infarction patient, and belongs to the field of biological medicine. The application comprises application of a reagent for detecting the lipid metabolism marker in preparation of a kit for predicting the risk of main adverse cardiovascular events after the PCI operation of a patient suffering from the acute ST segment elevation type myocardial infarction, and the reagent for detecting the lipid metabolism marker comprises glycodeoxycholic acid, [(2R)-3-[(6Z, 9Z, 12Z)-octadeca-6, 9, 10-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, the detection reagent is selected from one or more of a detection reagent for N-((2S, 3R)-1, 3-dihydroxy octadecane-4-alkene-2-yl) acetamide, a detection reagent for 2-(2, 6, 7, 12-trienoyl) oxy-2-[(Z)-octadecane-9-enoyl] oxypropyl] 2-(trimethyl ammonium) ethyl phosphate, 8-hydroxy-8-(3-octyl oxirane-2-yl) octanoic acid and N-((2S, 3R)-1, 3-dihydroxy octadecane-4-alkene-2-yl) acetamide. The four lipid metabolism markers (C44H80NO8P, C18H34O4, C20H39NO3 and C26H43NO5) screened by the invention are used for the prediction efficiency of MACE prediction, the sensitivity of the four lipid metabolism markers reaches 0.889, the specificity of the four lipid metabolism markers is 0.894, the AUC of the four lipid metabolism markers is 0.921, and the four lipid metabolism markers have high sensitivity and high specificity.

The present invention provides a 13 Purification method of C octanoic acid and 13 C octanoic acid, relates to the technical field of chemical drugs, the 13 The purification method of C octanoic acid comprises the following steps: 13 The crude product of C octanoic acid was dissolved, pH value adjusted and crystallized in sequence, and the crystals were obtained. 13 The present invention uses the recrystallization method to treat the crude product, decolorize and remove impurities, and can effectively remove 13 The impurities introduced during the synthesis of C octanoic acid are removed to improve the purity of the purified product. The purification method is cheap and easy to obtain, the processing process is simple and easy, no special equipment is required, and industrial production can be achieved. 13 The production and application of C octanoic acid are of great significance.

The invention discloses p-toluenesulfonic acid 8-tert-butyl diphenyl silyloxy-7-methyl octyl ester as well as a synthesis method and application thereof, and relates to the technical field of biopesticides. The preparation method comprises the following steps: taking 8-bromocaprylic acid as an initial raw material, and firstly reacting with t-BuOK and 18-crown ether-6; then reacting with pivaloyl chloride to generate acid anhydride, and then carrying out acylation reaction with 4-benzyl oxazolidine-2-ketone; then carrying out diastereoselective methylation; then, NaBH4 reduction is carried out; carrying out hydroxyl protection; then carrying out hydroboration oxidation reaction; and then carrying out TsCl sulfonylation, so as to synthesize the p-toluenesulfonic acid-8-tert-butyl diphenyl silyloxy 7-methyl octyl ester. The optical purity of the (S)-p-toluenesulfonic acid 8-tert-butyl diphenyl silyloxy-7-methyl octyl ester synthesized in the invention reaches 98%, and the optical purity of the (R)-p-toluenesulfonic acid 8-tert-butyl diphenyl silyloxy-7-methyl octyl ester synthesized in the invention also reaches 98%.

The invention belongs to the field of novel functional polymer materials, and discloses a preparation method of a selenium-containing polymer material capable of fixing metal ions, and the preparation method comprises the following steps: S1, adding PTMEG into a round-bottom reaction flask filled with inert gas, and placing the round-bottom reaction flask in an oil bath pan for melting; s2, MDI, dimethylglyoxime, DSe and anhydrous N, N-dimethylacetamide are sequentially added and fully mixed; s3, stannous octoate and CuCl2 are added at the same time; s4, keeping the temperature of the oil bath pan and continuously reacting; s5, after the reaction is finished, a polymer is precipitated out, and secondary cleaning is conducted through methyl alcohol. The preparation method has the advantages that oximido is introduced into a polyurethane molecular structure to fix metal ions, meanwhile, selenium is introduced in a covalent fixation mode, and through double-site introduction of the metal ions and the selenium, the molecular structure of the polyurethane is greatly improved; the NO catalytic release rate of the material can be regulated and controlled, so that the biocompatibility and applicability of the polymer material in a blood environment are improved, and the application scene is further widened.

The invention discloses a carbon dioxide capturing agent based on organic amine as well as a preparation method and application thereof. The carbon dioxide capturing agent is prepared from the following raw materials in parts by weight: 60 to 80 parts of organic amine, 10 to 20 parts of octanoic acid, 3 to 7 parts of carbon powder, 5 to 10 parts of urea, 10 to 20 parts of polyethylene glycol 400, 1.8 to 4 parts of polyethylene glycol monooleate, 2 to 4.05 parts of choline chloride and 40 to 60 parts of solvent. The absorption performance and regeneration effect of the capture agent on carbon dioxide can be improved.

The invention provides an extraction process of a dunaliella salina fat-soluble anti-allergy active matter based on a caprylic acid-4-terpineol hydrophobic deep eutectic solvent, and belongs to the technical field of natural product extraction. The extraction process comprises the following steps: S1, adding dunaliella salina into a jasmine flower solution according to a ratio of 1: 20 (W / V), stirring and dispersing, and then centrifuging to obtain a wet substance; s2, octanoic acid, capric acid and 4-terpineol are mixed to prepare a hydrophobic deep eutectic solvent; s3, dispersing the wet substance in water to serve as algae liquid, adding a hydrophobic deep eutectic solvent, extracting for 30 minutes at the temperature of 80-100 DEG C, and centrifuging to take an upper oil phase; and S4, dissolving the oil phase in caprylic / capric triglyceride according to a ratio of 1-10% (W / W) to obtain the anti-allergy active matter. The extraction process is simple, the extracted active matter has good anti-allergy and anti-oxidation effects and safety, the fishy smell of dunaliella salina is effectively removed, and the active matter can be directly applied to cosmetics and other products.

The invention provides antimicrobial composition comprising (a) a first active ingredient, wherein in the first active ingredient is selected from the group consisting of petroleum jelly, EpiCeram® emulsion, and / or glycerin, and (b) a second active ingredient selected from the group consisting of 1-octanoyl-rac-glycerol, 1-decanoyl-rac-glycerol, glycerol monolaurate (GML), rac-glycerol 1-myrstate, glycerol monocaprate, glycerol monocaprylate, glycerol monomyristate, or reutericyclin, wherein the second active ingredient is present at a concentration of 10 μg / ml to 100 mg / ml in the composition. The compositions are useful as antimicrobial agents.

The utility model relates to reaction device processing technical field discloses a reaction device for synthesizing octanoic acid diethylamino ethanol ester citrate, including the reaction kettle, one end of reaction kettle is equipped with the heat dissipation shell, the inner wall fixed connection of heat dissipation shell has the motor, the output fixed connection of motor has the first bevel gear, one side fixed connection of first bevel gear has the worm, the outer wall screw thread connection of worm has the worm wheel, one side fixed connection of worm wheel has the connecting post, one side fixed connection of connecting post has the stirring piece, one side of first bevel gear is provided with the rotating assembly, and the rotating assembly includes the second bevel gear. In the utility model, the motor is started to drive the first bevel gear to rotate, the worm drives the worm wheel to rotate, the stirring piece rotates, and the material for synthesizing octanoic acid diethylamino ethanol ester citrate in the storage tank can be premixed.

The invention belongs to the technical field of microbial fermentation, and particularly relates to bacillus velezensis and application thereof in preparation of ethyl laurate, farnesyl acetate and octanoic acid. The invention provides a bacillus velezensis strain which is preserved in the China General Microbiological Culture Collection Center on October 13, 2025, and the preservation number is CGMCC No. 36155. The bacillus velezensis strain has the advantages that the bacillus velezensis strain is preserved in the China General Microbiological Culture Collection Center on October 13, 2025; the address of the preservation unit is Institute of Microbiology, Chinese Academy of Sciences, No.3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing; ethyl laurate, farnesyl acetate and octanoic acid can be obtained by fermenting sugarcane juice with the fermentation broth. After subsequent extraction, the method can be used for industrial production.

The present application relates to the field of microbial technology, and particularly to a Pichia kudriavzevii (Pichia kudriavzevii) strain ZB448 and application thereof. Pichia kudriavzevi The Pichia kudriavzevii strain ZB448 provided by the present application has rich ester aroma, especially high content of phenylacetic acid ethyl ester, phenylacetic acid ethyl ester, ethyl acetate and isobutyl acetate, and significantly reduced content of ethyl octanoate; the aroma characteristics generated are strong fruit aroma and honey aroma and weak wine aroma, and the overall aroma is more pleasant and coordinated. The strain is used for fermentation of wheat protein seasoning juice, can effectively increase the content of ester aroma components in the product, weaken the adverse odor of bran koji, increase the content of umami amino acids, so that the product achieves the effect of rich ester aroma, rich aroma, and improved umami, and significantly improves the overall flavor and quality of the product.

A sunscreen composition, containing an effective amount of Methylene Blue and / or a hydrate and or a pharmaceutically-acceptable salt thereof; an effective amount of one or more UVA and / or UVB absorbing compounds, with the proviso that Oxybenzone and Octinoxate are excluded; and an excipient base.

The application provides a high-efficiency rust-proof oil and a preparation method and application thereof. The rust-proof oil comprises, by weight, 60-80 parts of base oil, 1-4 parts of rust-proof agent, 15-25 parts of corrosion inhibitor, 1-3 parts of antioxidant, 0.5-2 parts of metal passivator, 1-3 parts of film forming agent, 0.3-0.45 parts of 1,4-diaminoanthraquinone and 0.25-0.75 parts of methyl octanoate. The preparation method comprises the following steps: heating and stirring No. 10 white oil and No. 32 white oil to obtain the base oil; adding the rust-proof agent, the corrosion inhibitor, the antioxidant, the metal passivator and the film forming agent into the base oil in sequence, secondly stirring, then adding the 1,4-diaminoanthraquinone and the methyl octanoate, thirdly stirring, fourthly stirring the obtained mixture, and adding triethanolamine dropwise until the pH value is 7.2-7.5 to obtain the rust-proof oil. The rust-proof oil is used in the field of metal rust prevention, and the corrosion resistance of the metal surface is greatly improved.

Described herein are certain trifarotene fatty acid esters and topical, topical skin care compositions containing one or more such compounds. In some embodiments, after hydrolysis in the skin, the shorter chain trifarotene fatty acid esters release short chain fatty acids such as octanoic acid and lauric acid, known to contribute to penetration enhancement in topical skin delivery. Also described are methods of topically applying the topical compositions to the skin of a subject to inhibit or reduce light aging or acne signs.

Detergent compositions can include a surfactant; cloudiness causing perfume ingredient; and octanoic acid, nonanoic acid, decanoic acid, or a combination thereof. Also included are methods of solubilizing cloudiness causing perfume ingredients.

The present invention provides a method for treating water that can decompose organic fluorine compounds contained in the water to be treated. [Solution] A method for treating water to be treated, comprising a decomposition step of passing an electric current through water to be treated W1a containing an organofluorine compound and an electrolyte, and having an electrical conductivity of 6.0 mS / cm or higher, to decompose the organofluorine compound in the water to be treated W1a. The treatment method can be used to decompose organofluorine compounds in contaminated water W1A that is contaminated with organofluorine compounds such as perfluorooctanesulfonic acid and perfluorooctanoic acid.

The application discloses a gel polymer electrolyte and a preparation method and application thereof. The gel polymer electrolyte comprises monomers, an initiator, a lithium salt and an organic solvent. The monomers are provided with ether oxygen functional groups and carbonyl functional groups capable of conducting Li+. The initiator is selected from one of tin triflate and stannous octoate. The total mass ratio of the initiator and the monomers is 0.1-10:90-99. The mass ratio of the organic solvent and the lithium salt is 2-5:1. The application can realize the stability of the material to lithium metal without using a free radical polymerization mode represented by azobisisobutyronitrile, and can solve the problems of chemical reactions caused by initiator products and side reactions of residual active monomers by adjusting the adding proportion among the monomers, the initiator, the lithium salt and the organic solvent.

To provide a new alcoholic beverage having various flavor attributes favorable for use as an alcoholic beverage.SOLUTION: An alcoholic beverage containing 10.0 to 180.0 mg / L of pyroglutamic acid, 12.0 to 55.0 mg / L of ethyl acetate, and a total of 130.0 to 900.0 μg / L of ethyl hexanoate and ethyl octanoate.SELECTED DRAWING: None

This invention relates to an additive manufacturing method for strain rate-enhanced composite gels, comprising: a) polymerizing silicone oil, boric acid, and octanoic acid at high temperature to prepare a shear-hardening gel; b) introducing the shear-hardening gel into a polyvinyl alcohol aqueous solution and adding chitosan particles, followed by ball milling to obtain a composite gel precursor; c) printing the composite gel precursor using pneumatic extrusion combined with a triaxial motion control system, and then obtaining the composite gel through freeze-thaw treatment. This composite gel precursor is propelled from the nozzle by air pressure in a pneumatic extruder, and the triaxial motion control system enables the deposition of arbitrary two-dimensional patterns and the stacking of three-dimensional structures, overcoming the limitations of traditional strain rate-enhanced composite gels formed by molding and injection molding methods, and endowing it with greater molding freedom and higher molding precision in additive manufacturing.

The invention belongs to the technical field of catalyst preparation, and relates to a lanthanide-doped flaky binary metal catalyst, in particular to a preparation method and application of a binary PdPr catalyst. A one-step synthesis method is adopted, Pd and a metal precursor of a rare earth element Pr are evenly mixed with molybdenum hexacarbonyl and an n-caprylic acid solvent, after an oil bath reaction is carried out for a period of time, centrifugal collection and drying are carried out, and the flaky binary metal catalyst can be obtained. The preparation method disclosed by the invention is simple, few in steps and simple and convenient to operate. The prepared flaky binary PdPr catalyst has more excellent catalytic activity and stability than a monometal Pd catalyst and Pd black in the aspect of value-added conversion of waste plastics, can upgrade and convert the waste plastics into glycollic acid, and has better selectivity and yield.

The utility model discloses a protective octanoic acid post-precipitation filtering device, which comprises a component collecting component, a filtering component, a filtering component, a filtering component, a filtering component, a filtering component and a filtering component, and is characterized in that a groove is formed in the middle of the upper end of the component collecting component; the filtering assembly is arranged on the component collecting assembly, a feeding opening is formed in the filtering assembly, and the filtering assembly is used for filtering fed materials; the two ends of the drainage pipe are communicated with the discharging opening and the feeding opening respectively; and the drainage baffle is arranged above the component collecting assembly and is used for covering the filtering assembly. According to the protection type filtering device after octanoic acid precipitation, the filtering assembly can be covered by the drainage baffle, so that splashing feed liquid can be blocked by the drainage baffle in the working process of the filtering assembly, and the safety is improved.

The invention discloses a preparation method of sabesartan sodium in the technical field of medicines, which comprises the following steps of: adding cuprous chloride and a catalyst in the SN2 nucleophilic substitution reaction process of 8-chloro ethyl caprylate serving as a raw material and capralan, so that the reaction selectivity and the reaction yield are improved; a sodium hydroxide hydrolysis reaction is carried out, and a reducing agent is added under an anaerobic condition, so that the formation of colored impurities is minimized; and finally salifying with sodium hydroxide in an alcohol solvent to obtain a final product SNAC. The method has the advantages of high efficiency, simplicity, easiness in factory operation, good product appearance, high purity, economical and easily available raw materials and good industrialization prospect.

The invention belongs to the field of bio-based composite materials, and particularly relates to a bio-based film as well as a preparation method and application thereof. The bio-based film is of a double-layer composite structure and comprises an outer layer, the outer layer is formed by cross-linking chitosan and cellulose nanofibers through a cross-linking agent genipin and hydrophobic modification through caprylic acid, and a high-barrier transparent protective layer is formed; and the inner layer is formed by compounding thermoplastic starch and a hydrophobic deep-eutectic solvent consisting of thymol and octanoic acid, so that the heat sealing layer with antibacterial and antioxidant functions is formed.