Delta2-Dihydropyran-manufacture,factory,supplier from China

(Total 24 Products for Delta2-Dihydropyran)
Products Description of Tetrahydropyran CAS#142-68-7Tetrahydropyran, also known as oxadiazine, is a six-membered oxygen-containing saturated heterocyclic ring. It is a colorless, flammable liquid at room temperature with a special smell. It is miscible in water, ethanol, ether, and other organic solvents. It generates explosive organic peroxides under light. It is prepared by hydrogenation of dihydropyran in the presence of Raney nickel or reaction of 5-dibromopentane and water in the presence of zinc oxide.
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Products Description of SuccinonitrileCAS#110-61-2White waxy crystals. Melting point 54-56℃, boiling point 265-267℃, 185℃ (8.0kPa), 158-160℃ (2.67kPa), relative density (60/4℃) 0.985, refractive index (nD60) 1.41734 (liquid), flash point 110℃. Soluble in acetone, chloroform, dioxane, slightly soluble in water, ethanol, ether, carbon disulfide and benzene.
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Products Description of 3-Chloro-6-methylpyridazine CAS#1121-79-53-Chloro-6-methylpyridazine is a heterocyclic compound and chemical raw material. It has a low melting point and boiling point, and is usually light yellow to light beige in powder form.
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Products Description of Boron Trifluoride Diethyl Etherate CAS#109-63-7Boron trifluoride is an important Lewis acid catalyst in organic synthesis and plays an important role in organic reactions (such as polymerization, hydrocarbonization, alkylation, isomerization, etc.). It is inconvenient to use trifluoride when it is in gaseous state. In order to adapt to the activity requirements of different reactions, according to the characteristics of trifluoride, it is often combined with polar oxygen- or nitrogen-containing compounds to convert it into a complex with strong stability.
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Products Description of 1,1,3,3-Tetramethoxypropane CAS#102-52-3The ester compounds synthesized based on 1,1,3,3-tetramethoxypropane have ester-forming quaternary carbon atoms at the β position of the molecular structure of 1,1,3,3-tetramethoxypropane.
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Products Description of Monoethanolamine CAS#141-43-52-Hydroxyethylamine, also known as ethanolamine, is an organic compound with the chemical formula C2H7NO.Monoethanolamine Chemical PropertiesMelting point 10-11 °C(lit.)Boiling point 170 °C(lit.)density 1.012 g/mL at 25 °C(lit.)vapor density 2.1 (vs air)vapor pressure 0.2 mm Hg ( 20 °C)refractive index n20/D 1.454(lit.)Fp 200 °Fstorage temp. Store at +15°C to +25°C.solubility Soluble in benzene, ether, carbon tetrachloride.pka9.5(at 25℃)form Liquidcolor
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Products Description of 2,2'-Azobis(2-methylpropionitrile) CAS#78-67-1White columnar crystals or white powdery crystals.
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Products Description of Coconut oil CAS#8001-31-8Coconut oil is an oil extracted from coconut pulp (dry pulp contains about 63% to 70% oil). It is a white semi-solid lard-like fat. It has a unique coconut fragrance. The main components are glycerides of lauric acid, myristic acid, and oleic acid. The melting point is 23 to 28°C. The relative density is 0.917 to 0.919 (25/25°C). The saponification value is 250 to 264. The iodine value is 8 to 12. The acid value does not exceed 6. It is soluble in alcohol, chloroform, ether, and carbon disulfide, but insoluble in water.
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Products Description of Glyoxal CAS#107-22-2Glyoxal is an organic compound with the chemical formula OCHCHO, which is composed of two aldehyde groups -C=O-H.
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Ethylene Glycol Diacetate CAS#111-55-7Ethylene Glycol Diacetate, additionally recognized as ethylene glycol diacetate, has a chemical shape containing an ethylene glycol (1,2-ethanol) skeleton, with an acetate crew (-O-C (=O)-CH₃) linked to every of the two hydroxyl positions of ethylene glycol.It is normally a colorless, obvious liquid, from time to time barely yellowish.
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Products Description of Direct Pigment Yellow 42 CAS#51274-00-1Barium sulfate has its chemical formula BaSO4. It is colorless or white orthorhombic crystals with relative molecular mass of 233.4, the relative density of 4.5 (15 ℃), the melting point of 1580 ℃, and the Refractive index of 1.637. Upon being heated to 1149 ℃, it will become monoclinic crystalline when the refractive index is 1.649. It is almost insoluble in water with the solubility being 0.00022 at 18 ℃ and 0.0041 at 100 ℃.
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Products Description of diisooctyl 2,2'-[(dioctylstannylene)bis(thio)]diacetateCAS#26401-97-8Mainly used in PVC products that come into contact with food and medicine, such as plates, sheets, films, etc., and can be used in processes such as calendering, blow molding, extrusion, injection, etc.diisooctyl 2,2'-[(dioctylstannylene)bis(thio)]diacetate Chemical Propertiesdensity 1.08[at 20℃]vapor pressure 0Pa at 25℃storage temp. Refrigerator, under inert atmospheresolubility Chloroform (Slightly), Ethyl Acetate (Slightly)form Oilcolor ColourlessWater Solu
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Products Description of Glyceryl monostearate CAS#31566-31-1 Glyceryl monostearate is an emulsifier and additive for food; it is used as an emulsifier in cosmetics and pharmaceutical ointments.
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Products Description of Antioxidant 1330 CAS#1709-70-2Hindered phenol antioxidant 330 is a white crystalline powder with a melting point above 244°C. It is insoluble in water. Its solubility in some solutions at 18°C (g/100g solvent) is: benzene 20, dichloromethane 31.9, methylcyclohexane 1.7, methanol 0.2, isopropanol 0.1.
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Products Description of Amoxicillin CAS#26787-78-0Amoxicillin, also known as amoxicillin or anmercillin, is one of the most commonly used broad-spectrum β-lactam antibiotics of the penicillin class. It is a white powder with a half-life of about 61.3 minutes. It is stable under acidic conditions, with a gastrointestinal absorption rate of 90%. It has strong bactericidal effects and the ability to penetrate cell membranes. It is also one of the semi-synthetic penicillins that are currently widely used in clinical practice.
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Products Description of Ethyl butylacetylaminopropionate CAS#52304-36-6Mosquito repellent, also known as ethyl butyl acetylaminopropionate, BAAPE, IR3535, and Imonin, is a plasticizer and a broad-spectrum, highly effective, low-toxic insect repellent.Ethyl butylacetylaminopropionate Chemical PropertiesMelting point <-20°Boiling point bp0.2 108-110°; bp0.5 126-127°density 0.987±0.06 g/cm3(Predicted)refractive index nD20 1.452-1.455Fp 318°F (159°C)storage temp. Sealed in dry,Room Temperaturesolubility Acetonitrile (Slightly), Chloroform (Slightly), Ethy
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Products Description of Diethylamino hydroxybenzoyl hexyl benzoate CAS#302776-68-7Diethylamino hydroxybenzoyl hexyl benzoate is an organic peroxide with strong oxidizing effect. It is easy to produce highly active free radicals during thermal decomposition. It is thermally unstable and may decompose at relatively low temperatures. During the decomposition process of diethylamino hydroxybenzoyl hexyl benzoate, a large amount of heat and gas is released, which increases the temperature and accelerates the decomposition.
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Products Description of Dioctyl terephthalate CAS#6422-86-2Dioctyl terephthalate (DOTP) is a high-performance main plasticizer for polyvinyl chloride (PVC) plastics. Compared with the commonly used diisooctyl phthalate (DOP), it has the advantages of heat resistance, cold resistance, low volatility, anti-extraction, flexibility and good electrical insulation performance. It shows excellent durability, soap water resistance and low-temperature flexibility in the products.
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Products Description of Sodium hydrosulfideCAS#16721-80-5Sodium hydrosulfide is used in the dye industry to synthesize organic intermediates and as an auxiliary agent for preparing sulfur dyes, in the leather industry to dehair and tan leather, in the fertilizer industry to remove monomer sulfur in activated carbon desulfurizers, in the mining industry to be used in large quantities for copper ore dressing, in the production of artificial fibers for sulfite dyeing, etc.
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Glycerin For Skin CAS#56-81-5 discover the power of Glycerin (CAS#56-81-5), also known as vegetable glycerine or liquid glycerol, a key component in a wide array of industries.
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Products Description of 2,4,5-Trichloropyrimidine CAS#5750-76-52,4,5-Trichloropyrimidine is a new type of reactive dye intermediate raw material and a synthetic raw material for new antibacterial and anti-inflammatory chemical drugs. With the continuous increase in sales of new reactive dyes and new antibacterial and anti-inflammatory drugs, the demand for the raw material 2,4,5-Trichloropyrimidine required for its synthesis is also growing. Therefore, it is particularly urgent to study its synthesis and develop a green new process suitable for industrial mass production.
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Products Description of ICHTHOSULFONATE CAS#8029-68-3Ichthyol is a disinfectant and antiseptic drug. It is mainly used for furunculosis in clinical practice. It can also be used for phlebitis and combined with antibiotic ointment to treat early blepharitis. Ichthyol ointment has an anti-inflammatory effect, so it can be applied externally to treat folliculitis.
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Products Description of Chromium(III) fluoride CAS#7788-97-8Chromium trifluoride, also known as chromium trifluoride, is an inorganic compound with the chemical formula CrF3. It is mainly used as a mothproofing agent for wool fabrics, a halogenation catalyst, a marble hardener and a colorant.On October 27, 2017, the World Health Organization's International Agency for Research on Cancer published a preliminary list of carcinogens for reference.
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Products Description of (2-Bromoethyl)benzene  CAS#103-63-9β-Bromophenylethane is an important intermediate for the synthesis of highly efficient brominated flame retardant polybrominated styrene, and is also commonly used in the preparation of organic synthesis intermediates. For example, β-Bromophenylethane can be used to prepare 4-(4-phenylbutoxy)benzoic acid, an intermediate for preparing pranlukast. Pranlukast was first successfully developed by Ono Co., Ltd. of Japan as an anti-asthma drug and was launched in Japan in 1995.
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Relate News
Title: Global Dimethyl Disulfide (DMDS) Market: Production, Supply Dynamics, and Industry TrendsIntroduction:The global market for Dimethyl Disulfide (DMDS), chemically known as C2H6S2 with the CAS number 624-92-0, is witnessing a surge in demand across various sectors, driving its production and supply chain to new heights.
Dimethyl disulfide (DMDS, CAS# 624-92-0) has recently witnessed a remarkable increase in market demand and continuous progress in related research.Soaring Market Demand   DMDS is extensively utilized in multiple fields, which is a crucial factor contributing to its rapidly growing market demand.In the agricultural sector, it serves as an effective and eco-friendly soil fumigant, playing a vital role in nematode control.
Recent News Summary on AntioxidantsHealth and Disease Mechanisms: A comprehensive understanding of the mechanisms of antioxidant action in health and disease has been discussed in a recent study, highlighting the role of oxidative stress in various human diseases and the potential of antioxidants as therapeutic agents .Advances in Antioxidant Research: Recent developments in the field of antioxidants have focused on the structure and antioxidant properties of various compounds.
Evening primrose (Eveningprimrose) is a willow leaf vegetable native to North America. It gets its name because its flowers only bloom at night. Its roots, stems and leaves are often used as medicine by European nobles, so it is also known as the emperor’s panacea.Modern research has found that evening primrose oil extracted from evening primrose seeds is rich in GLA (gamma-linolenic acid). GLA is an unsaturated fatty acid, which is an important component of human cell membranes.
2-ACP Introduction2-ACP, is a chemical compound with the molecular formula C6H6ClN2. It is an important intermediate in the synthesis of various pharmaceuticals and agrochemicals. In this article, we will discuss the properties, applications, and synthesis of 2-ACP.2-ACP Properties1. Physical Properties: 2-ACP is a white to off-white crystalline powder with a melting point of 110-114℃. It is soluble in organic solvents such as ethanol, methanol, and acetone, but insoluble in water.2. Chemical Properties: 2-ACP is a heterocyclic compound containing a pyridine ring and an amino group.
2-(Methylamino)pyridine IntroductionIt, also known as MAP, is a chemical compound with the molecular formula C6H8N2. It is commonly used in the pharmaceutical and chemical industries as a building block for various drugs and chemicals. In this article, we will explore the properties, applications, and synthesis of 2-(Methylamino)pyridine.2-(Methylamino)pyridine Properties1. Physical properties: it is a colorless to pale yellow liquid with a pungent odor. It has a boiling point of 208-209°C and a melting point of -35°C.2.
February 10, 2025 - Sodium Hydroxide (CAS#1310 - 73 - 2), also known as Caustic Soda or caustic soda, is an indispensable chemical in the global chemical industry. According to the latest market research report, the global sodium hydroxide market size reached $49.77 billion in 2023 and is expected to grow to $66.82 billion by 2030, with a compound annual growth rate (CAGR) of 4.29%.Production and Technological Innovation of Sodium HydroxideSodium hydroxide (NaOH) is mainly produced through the chlor - alkali process.
Vitamin K is an essential fat-soluble nutrient, and also our body needs it to accomplish healthy and balanced blood coagulation and also other functions. It has 2 forms:Vitamin K1, (phylloquinone) is discovered in green leafy vegetables, veggies and some veggie oils.Vitamin K2, (menaquinone) exists in dairy products, fermented foods and pet products.You can likewise obtain vitamin K supplements, but scientific trials reveal that the vitamin K we extract from food is a lot more effective for our body.
For gemstones, amber is undoubtedly the most precious kind, and it is loved and sought after. However, the formation of amber takes a very long time. Therefore, it is not as simple as it looks on the surface. It also contains rich substances, which can be extracted and used in many aspects. It can also be made into various medicines with remarkable effect. It can be said that amber not only has a beautiful appearance, but also helps in medicine.Amber's Powerful Root - Succinic AcidSuccinic acid is a colorless crystal extracted from amber by scientists in the 15th century.
What is Cornmint Oil?Cornmint oil is a colorless or light yellow clear liquid. It has a special refreshing fragrance, which is pungent at the beginning and cool afterwards. After long-term storage, the color becomes darker. It is often used to repel mosquitoes and relieve physical fatigue.Legend has it that the original name of mint comes from Greek mythology. Pluto Hades fell in love with the beautiful Elf Mansi, and Pluto’s wife Persephane was very jealous.
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