Apatatedrape-manufacture,factory,supplier from China

(Total 24 Products for Apatatedrape)
Appearance: Colorless liquid. The boiling point is 189 °C, the relative density is 1.073 (25/4 °C), the refractive index is 1.4494, and the flash point is 76 °C. Soluble in organic solvents, insoluble in water.Melting point -52 °cBoiling Point: 189 °C(lit.)Density 1.075 g/mL at 20 °CVapor pressure 4.2hPa at 25°CRefractive index n20/D 1.449(lit.)Flash point 169 °FStorage conditions RefrigeratorMorphological liquidThe color is transparentWater solubility: 0.5-1.0 g/100 mL at 20 ºCBRN2506Stability is unstable. Sensitivity to light. MEHQ of about 100 ppm can be used as a stabilizer.
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Method 1Its preparation methods are as follows:2,4-disulfophenol alkali melt hydrolysis method;o-chlorophenol hydrolysis;phenol direct oxidation;phenolic oxidation;O-hydroxycyclohexanone dehydroaromatization.Among them, (1) and (2) the process is complex, the three wastes are polluted, and they are gradually replaced by new processes, while methods (4) and methods (5) are being industrialized abroad.
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Appearance: White crystalline.Melting Point: 210 °C (subl.) (lit.)Flash point 198 °CStorage conditionsKeep in dark place,Inert atmosphere,Room temperatureMorphological crystalline powderColor: off-white to yellowish-beigePH 2.0 (100g/l, H2O, 20°C)Water solubility is easily soluble in water.Detection Method: HPLCBRN3684904InChIKeyXGAFCCUNHIMIRV-UHFFFAOYSA-NCAS DataBase Reference7379-35-3EPA Chemical Substance Information 4-Chloropyridine hydrochloride (7379-35-3)apply4-chloropyridine hydrochloride is an important intermediate in organic synthesis, which is widely used in the preparation of new
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Chinese Name: Thiopidine trioxide Chinese synonyms: compounds of thiopidine trioxide; sulfur trioxide-pyridine complex; Pyridine sulfur trioxide; Thiopidine trioxide; Thiopidine trioxide complex; Synthesis of thiophorine trioxide; Sulfur trioxide yridine complex; Sulfurtrioxypyridine complex [2]English name: Pyridine sulfur trioxide English synonyms: Pyridine, compd.withsulfurtrioxide (1:1); Salfurtrioxidepyri-dinecomplex; Sulfurtrioxide,compd.withpyridine(1:1); (DIMETHYLAMINOMETHYL) STYRENE; VINYLBENZYLDIMETHYLAMINE; N,N-DIMETHYLVINYLBENZYLAMINE; POLY(4-VINYLPYRIDINE) SULFUR TRIOXID
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1-(DIMETHYLAMINO)HEXADECANEArmeen DM 16DCETYLDIMETHYLAMINEDIMETHYL HEXADECYLAMINEhexadecyldimethylamineN,N-DIMETHYLCETYLAMINEN,N-DIMETHYLHEXADECYLAMINEN,N-DIMETHYL-N-HEXADECYLAMINEN,N-DIMETHYLPALMITYLAMINEAdma 16bairdcatb16Crodamine 3.A16DDimethyl palmitamineDimethyl-1-hexadecanamineDimethylcetylamineDimethyl-n-hexadecylaminedimethylpalmitylaminegenamin16r302dHexadecylamine, N,N-dimethyl-n,n-dimethyl-1-hexadecanaminCetyl dimethyl tertiary amine is an industrial fungicide.
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Character description: colorless transparent liquid. Melting point -90.2C, boiling point 117.7 °C, relative density 0.8098 (20/4C), refractive index 1.3993, flash point 35.35.5 °C, spontaneous ignition point 365 °C. The solubility in water at 20 °C is 7.7% (mass), and the solubility of water in n-butanol is 20.1% (mass). Miscible with ethanol, ethyl and other organic solvents. Vapor forms an explosive mixture with air, with an explosion limit of 1.45-11.25 (volume). It can form an azeotropic mixture with water, its boiling point is 92 °C, and the water content is 37%.
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Sodium gluconate is a kind of organic matter, chemical formula C6H11NaO7, in the industry is very widely used, sodium gluconate can be used in construction, textile printing and dyeing and metal surface treatment and water treatment industries as efficient chelating agent, steel surface cleaning agent, glass bottle cleaning agent, electroplating industrial aluminum oxide coloring, in the concrete industry as a high efficiency retarding agent, high efficiency water reducing agent.Used as a cleaning agent for steel surface:Steel surface such as the need for plating bowl, chromium plating, tin pl
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Imidazole, molecular formula C3H4N2, is an organic compound, a type of diazole, a five-membered aromatic heterocyclic compound containing two meta-nitrogen atoms in its molecular structure.
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Magnesium sulfate solution, volumetric laxatives and choleretic agents. It is used for catharsis, choleretic, duodenal drainage and local swelling.Ingredients BroadcastThe main component of this product is magnesium sulfate.It is a sterilized aqueous solution of magnesium sulfate. Magnesium sulfate (MgSO4.7H2O) should be 95.0%~105.0% of the labeled amount.Molecular formula: MgSO4·7H2OMolecular weight: 246.48Indications BroadcastVolumetric laxatives and choleretics.
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Purpose 1used as pharmaceutical raw materials, health care products, intermediates, food additives, etcPurpose 2D-ribose is an important component of nucleic acid, the genetic material in living organisms, which occupies a pivotal position in the metabolism of nucleosides, proteins and fats, and has important physiological functions and broad application prospects. As a natural component of all cells in living organisms, D-ribose is closely related to the formation of adenylate and the regeneration of ATP, and is one of the most basic sources of energy for life metabolism.
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Purpose 1used as pharmaceutical uncooked materials, fitness care products, intermediates, meals additives, etcPurpose 2D-ribose is an vital issue of nucleic acid, the genetic fabric in residing organisms, which occupies a pivotal function in the metabolism of nucleosides, proteins and fats, and has necessary physiological features and huge software prospects.
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Storage Conditions/Storage methods:Seal away from light and store in a cool place.Stability related:Other information:1. Properties: White or white powder. Almost odorless, tasteless and hygroscopic.2. Solubility: soluble in water and salt water, insoluble in ethanol, acetone, benzene, chloroform and ether. The pH of 1% aqueous solution is 6.0~7.5.Heparin was originally extracted from the liver, and is now mostly extracted from the intestinal mucosa of pigs, sheep, cattle and other animals, and can be extracted from the lungs and liver.
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Methylamine has a wide range of industrial uses.
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Appearance: white or off-white crystalline powder, odorless, bitter taste. Deterioration in contact with light. Mp214-220°C (decomposition); Specific rotation [α] 25D+157.5° (dioxane), +176° (chloroform), +162°-+169° (ethanol); The ethanol solution has a maximum absorption at a wavelength of 242 nm. This product is insoluble in water, insoluble in ether, slightly soluble in chloroform, soluble in acetone, ethanol. Soluble in concentrated sulfuric acid solution and green fluorescence.
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Character description: colorless obvious liquid. Melting factor -90.2C, boiling factor 117.7 °C, relative density 0.8098 (20/4C), refractive index 1.3993, flash factor 35.35.5 °C, spontaneous ignition factor 365 °C. The solubility in water at 20 °C is 7.7% (mass), and the solubility of water in n-butanol is 20.1% (mass). Miscible with ethanol, ethyl and different natural solvents. Vapor varieties an explosive combination with air, with an explosion restrict of 1.45-11.25 (volume).
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Appearance: Colorless liquid. The boiling point is 189 °C, the relative density is 1.073 (25/4 °C), the refractive index is 1.4494, and the flash point is 76 °C. Soluble in organic solvents, insoluble in water.Melting point -52 °cBoiling Point: 189 °C(lit.)Density 1.075 g/mL at 20 °CVapor pressure 4.2hPa at 25°CRefractive index n20/D 1.449(lit.)Flash point 169 °FStorage conditions RefrigeratorMorphological liquidThe color is transparentWater solubility: 0.5-1.0 g/100 mL at 20 ºCBRN2506Stability is unstable. Sensitivity to light. MEHQ of about 100 ppm can be used as a stabilizer.
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Anilidine, additionally acknowledged as aminobenzene, is an natural compound, chemical components C6H7N, is a colorless oily liquid, heated to 370 °C decomposition, barely soluble in water, soluble in ethanol, ether and different natural solvents.Aniline is one of the most vital amines. It is in general used in the manufacture of dyes, drugs, resins, and can additionally be used as rubber vulcanization accelerators. It itself can additionally be used as a black dye.
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2,3,4,5-TETRAFLUORBENZOYLCHLORID2,3,4,5-TETRAFLUOROBENZOYL CHLORIDEBenzoyl chloride, 2,3,4,5-tetrafluoro- (9CI)2,3,4,5-Tetrafluorobenzoyl2,3,4,5-Tetrafluorobenzoyl chloride 98%2,3,4,5-TETRAFLUOROBEZOYL CHLORIDE2,3,4,5-Tetrafluorobenzoylchloride98%94-24-62,3,4,5-Tetrafluorobenzoic acid chlorideBoiling point 65-66 °C 10mmDensity: 1.58 g/mL at 25 °C(lit.)Refractive index n20/D 1.4787(lit.)Flash point 194 °FSpecific gravity 1.580Sensitivity: Moisture sensitivityBRN5266860InChIKeyXWCKIXLTBNGIHV-UHFFFAOYSA-NCAS DataBase Reference94695-48-4
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The appearance is colorless and crystalline, and it can be sublimated when it is exposed to light or discoloration in the air.Appearance trait: colorless crystal. Discoloration in case of air and light. Its solution turns tan in the air.
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Hydrazine hydrate, also known as hydrazine hydrate, is a colorless and transparent oily liquid with a light ammonia smell, smoke in humid air, and is highly alkaline and hygroscopic.
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Pharmacological actionSince the discovery that long-acting local anesthetics can induce cardiac arrest, people have been looking for safer alternatives with less fat solubility. Ropivacaine is such a new long-acting amide local anesthetic, which has a long duration of action and has anesthetic and analgesic effects. Its pharmacological characteristics are low cardiotoxicity, sensory block and motor block are clearly separated, and it has peripheral vasoconstriction effect.
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Chemical propertiesFormaldehyde and resorcinol react under alkaline conditions to form orange-red compounds, which are colorimetric at a maximum absorption wavelength of 460nm to detect low traces of formaldehyde in textile and clothing.Since resorcinol can undergo enol and ketone form tautomerism, it can react with ammonia as follows:Ketone reaction of resorcinolUnder the action of ammonia, m-phenyltriamine is obtained by reaction in ketone, and the amine is hydrolyzed in the aqueous solution of acid to obtain resorcinol.
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Rare earth chitosamine chelated saltsRare earth chitosamine integration salts are special compounds that are composed of rare earth elements and chitosamine formed integrators. In chemistry, integration refers to the combination of one or more coordination groups (usually dominated by oxygen and ammonia atoms) with metal ions to form a stable complex.
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Medicine intermediate refers to a compound generated as an intermediate step in the process of synthetic drugs. It has high purity and activity, which can synthesize target drugs through further chemical reactions. Medicine intermediates are widely used in the pharmaceutical industry, covering multiple fields. The classification of pharmaceutical intermediates and its application areas will be introduced below.1. Carboxylic acid intermediate:The intermediate of the carboxylic acid refers to the compound of the carboxylic acid group, and the common ones are benzoic acid and propylic acid.
I. Overview of chemical and pharmaceutical intermediatesChemical pharmaceutical intermediates are a very important part of the pharmaceutical industry, referring to raw materials or semi-finished products in the pharmaceutical industry. These substances undergo a series of chemical reactions to eventually form pharmaceutical products. These chemicals usually exist in liquid or solid form and belong to various types of organic compounds such as acids, alcohols, carboxylic acids, phenols, cork and so on.
April 23, 2020. Customized in the middle of Shandong Pharmaceutical. The so -called Shandong pharmaceutical intermediate is actually some chemical raw materials or chemical products for drug synthesis process. This kind of chemical product does not require the production license of drugs. It can be produced in ordinary chemical plants. As long as it reaches some levels, it can be used for the synthesis of drugs.There are more than 2,000 raw materials and intermediates that need to be matched with chemicals each year, with more than 2.5 million tons.
Shandong is one of the important pharmaceutical production bases in the country, and the production production is relatively concentrated. The treatment of Shandong Pharmaceutical Intermediate waste is essential for protecting the environment, human health, and sustainable enterprise. This article will discuss how to properly handle waste in the production of Shandong pharmaceutical intermediates.First, reasonable classification and storage wasteReasonable classification and storage waste are the first step in waste treatment.
May 13, 2020. Pharmaceutical intermediate body fluorine customized. Pharmaceutical fluorine: colorless liquid. The melting point -42 ℃. Boiling point 85 ° C. Refractive index (ND20) 1.4650. Relators (D420) 1.024. Insuvenate in water and mixes with ethanol, ether, acetone, and benzene. Apineine reacts through Schiemann (G. Schiemann).Ah. After the aniline was descended to -8 ° C after 31%hydrochloride, and the sodium nitrite solution was nitroded.
Intermediate production of chemical medicine is a work involving a large number of chemicals. If it is not managed and controlled correctly, it may bring serious risks and pollution to the environment. In order to reduce environmental risks in the production of chemical medicine, we need to improve and control from the following aspects.First, establish a scientific and standardized production process. The production of chemical medicine needs to go through multiple steps and reactions. Each step needs to carefully evaluate and formulate corresponding operating procedures.