Vildagliptin Impurity J-manufacture,factory,supplier from China

(Total 24 Products for Vildagliptin Impurity J)
Products Description of J acid CAS#87-02-5J acid is light gray powder or granules, and the pure product is white needle crystal. Soluble in hot water, hardly soluble in cold water, almost insoluble in ethanol.
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Products Description of (2S)-1-(Chloroacetyl)-2-pyrrolidinecarbonitrile CAS#207557-35-5 (2S)-N-Chloroacetyl-2-cyanopyrrole is a key intermediate of the dipeptidyl peptidase IV inhibitor vildagliptin (V305000)(2S)-1-(Chloroacetyl)-2-pyrrolidinecarbonitrile Chemical PropertiesMelting point 52-53 °CBoiling point 363.1±37.0 °C(Predicted)density 1.27±0.1 g/cm3(Predicted)storage temp. under inert gas (nitrogen or Argon) at 2-8°Csolubility Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)form Solidpka-4.65±0.40(Predicted)color Pale Yellow to Ligh
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Products Description of 6,7-Dimethoxyquinazoline-2,4-dione CAS#28888-44-06,7-Dimethoxy-2,4-quinazolinedione (doxazosin EP impurity D) is a chemical crystalline compound with a melting point of >300°C, an intermediate of prazosin hydrochloride.6,7-Dimethoxyquinazoline-2,4-dione Chemical PropertiesMelting point >300 °C (lit.)Boiling point 363.37°C (rough estimate)density 1.3404 (rough estimate)refractive index 1.6300 (estimate)storage temp. 2-8°Csolubility Aqueous Acid (Sparingly)pka10.27±0.20(Predicted)color White to Off-WhiteWater Solubility i
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Products Description of Tetraethylammonium hydroxide CAS#77-98-5Tetraethylammonium hydroxide is an organic quaternary ammonium base. Most products exist in the form of methanol and aqueous solution. It is a colorless to light yellow liquid at room temperature. It has strong alkalinity and can absorb carbon dioxide in the air and decompose upon heating. It has a wide range of uses in the field of industrial research. It is used as a phase transfer catalyst, a template for molecular sieve synthesis, a cleaning agent, and a de-impurity agent in the petroleum industry.
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Products Description of SODIUM TRISILICATE CAS#13870-30-9Sodium silicate is a water-soluble silicate, which can be divided into three forms: solid, liquid, and water-quenched. In theory, this type of substance is called "colloid". Industrial solid sodium silicate is a colorless, slightly light blue, turquoise, sky blue or yellow-green transparent or translucent glass block. When the impurity content is very low, the glassy anhydrous solid sodium silicate is a colorless and transparent glass body, and pure solid sodium cinnamate is a colorless and transparent solid.
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Products Description of 2-Amino-5-Methyl-3-Thiophenecarbonitrile CAS#138564-58-6An impurity generated in the preparation of Olanzapine.2-Amino-5-Methyl-3-Thiophenecarbonitrile Chemical PropertiesMelting point 101-103°CBoiling point 318.5±42.0 °C(Predicted)density 1.26±0.1 g/cm3(Predicted)storage temp. under inert gas (nitrogen or Argon) at 2–8 °Csolubility soluble in Methanolform powder to crystalpka0.16±0.10(Predicted)color Light yellow to BrownInChIKeyYGXADLPRHBRTPG-UHFFFAOYSA-NCAS DataBase Reference138564-58-6(CAS DataBase Reference)Safety Information
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Products Description of Benzethonium chloride CAS#121-54-0Benzethonium chloride is a new type of quaternary ammonium salt antibacterial agent, which is widely used in daily chemicals and cosmetics industries. In addition, it also has important applications in the medical and health fields as a bactericidal antibacterial agent. For example, it has been widely used as an antibacterial component of eye drops or as an antibacterial component of injection in Western countries.
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Products Description of Chromic chloride hexahydrate CAS#10060-12-5Purple monoclinic crystal. Relative density 1.76. Melting point 83℃. Soluble in water, ethanol, slightly soluble in acetone, insoluble in ether. Deliquescent. Toxic!Chromic chloride hexahydrate Chemical PropertiesMelting point 83 °Cdensity 1.76 g/mL at 25 °C(lit.)storage temp. Inert atmosphere,Room Temperaturesolubility Methanol (Slightly), Water (Slightly)form Powder/SolidSpecific Gravity1.76color Reddish-violetPH2.0-3.0Water Solubility Soluble in water and alcohol.
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Products Description of Dodecyltrimethylammonium chloride CAS#112-00-5This product has two specifications. When the effective content is 32% to 35%, the appearance is light yellow liquid. Solidification point -15℃. Relative density 0.981g/cm3. HLB value 17.1. Flash point (open cup) 60℃. When the effective content is 49% to 52%, the appearance is thick liquid. Solidification point -12~-9℃. Density 0.892g/cm3. HLB value 17.1. Flash point (open cup) <27℃. Surface tension (10% aqueous solution) 33×10-3N/cm. Both are miscible with water. Stable chemical properties.
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Products Description of Dodecyltrimethylammonium chloride CAS#112-00-5This product has two specifications. When the effective content is 32% to 35%, the appearance is light yellow liquid. Solidification point -15℃. Relative density 0.981g/cm3. HLB value 17.1. Flash point (open cup) 60℃. When the effective content is 49% to 52%, the appearance is thick liquid. Solidification point -12~-9℃. Density 0.892g/cm3. HLB value 17.1. Flash point (open cup) <27℃. Surface tension (10% aqueous solution) 33×10-3N/cm. Both are miscible with water. Stable chemical properties.
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Products Description of Vinylbenzyl chloride CAS#30030-25-2Chloromethylvinylbenzene can be used as an organic synthesis intermediate and a pharmaceutical intermediate, mainly used in laboratory research and development processes and chemical production processes.Vinylbenzyl chloride Chemical PropertiesMelting point -30°CBoiling point 229 °C(lit.)density 1.074 g/mL at 25 °C(lit.)vapor density 5.3 (vs air)vapor pressure 1 mm Hg ( 56.1 °C)refractive index n20/D 1.572(lit.)Fp 221 °Fstorage temp. -20°Csolubility Acetonitrile (Slightly
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Products Description of Choline chloride CAS#67-48-1Choline chloride was developed by the Agricultural Technology Institute of the Ministry of Agriculture, Forestry and Fisheries of Japan in 1964, and registered as a plant growth regulator in 1987. It also became vitamin B4. Common choline chlorides on the market are divided into plant-carrier choline chloride and white carbon black (silicon dioxide) as a carrier choline chloride. my country's production is about 400,000 tons, accounting for more than 50% of the global production capacity.
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Products Description of Potassium phosphate CAS#778-53-21-Ethyl-2-pyrrolidone is a transdermal absorption-enhancing compound and mechanism of its effect on multilammellar liposome of stratum corneum lipid has been studied.N-Ethyl-2-pyrrolidone is commonly used as a solvent. It has a low boiling point, which makes it suitable for use in low light and at constant pressure. It is also used as an intermediate in the preparation of polycarboxylic acid.
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Product DetailsProducts Description of Octadecenoic Acid CAS#112-80-1Insoluble in water, soluble in benzene, chloroform, miscible with methanol, ethanol, ether and carbon tetrachloride. Because it contains double bonds, it is easily oxidized by air, producing an unpleasant odor and turning yellow. When treated with nitrogen oxides, nitric acid, mercurous nitrate and sulfurous acid, it can be converted into oleic acid. When hydrogenated, it becomes stearic acid. The double bonds can easily react with halogens to form halogenated stearic acid.
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Products Description of Diethyl Ethoxymethylenemalonate CAS#87-13-8Ethoxymethylene, also known as diethyl ethoxymethylenemalonate, is a colorless, transparent and viscous liquid. It is an important pharmaceutical intermediate and is widely used in the synthesis of medicines, pesticides and auxiliaries.
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Products Description of Gadoteric acid CAS#72573-82-1White powderGadoteric acid Chemical PropertiesMelting point >300°Cstorage temp. Refrigeratorsolubility Water (Slightly)form Solidcolor White to Off-White Factory and Equipment ShowFast delivery timeInventory 2-3 working days New production 7-10 working days
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Products Description of Oleic acid CAS#112-80-1Insoluble in water, soluble in benzene, chloroform, miscible with methanol, ethanol, ether and carbon tetrachloride. Because it contains double bonds, it is easily oxidized by air, producing an unpleasant odor and turning yellow. When treated with nitrogen oxides, nitric acid, mercurous nitrate and sulfurous acid, it can be converted into oleic acid. When hydrogenated, it becomes stearic acid. The double bonds can easily react with halogens to form halogenated stearic acid.
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Products Description of Dimethyl Disulfide 99.5% MIN CAS#624-92-0Dimethyl disulfide is an organic compound with the chemical formula C2H6S2.Dimethyl disulfide Chemical PropertiesMelting point -85 °CBoiling point 109 °C(lit.)density 1.0625vapor density 3.24 (vs air)vapor pressure 22 mm Hg ( 20 °C)refractive index n20/D 1.525(lit.)FEMA 3536 | DIMETHYL DISULFIDEFp 76 °Fstorage temp. Flammables areasolubility 2.7g/lform LiquidSpecific Gravity1.0647 (20/4℃)color Clear yellowOdorat 0.10 % in propylene glycol.
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Ethyl acetate CAS# 141-78-6Chemical Properties:Ethyl acetate (structure shown above) is the most familiar ester to many chemistry students and possibly the ester with the widest range of uses. Esters are structurally derived from carboxylic acids by replacing the acidic hydrogen by an alkyl or aryl group. Ethyl acetate itself is a colourless liquid at room temperature with a pleasant "fruity" smell, b.p.
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Products Description of 1-Aminocyclopropanecarboxylic acid CAS#22059-21-81-Aminocyclopropanecarboxylic acid is a cyclic amino acid, also known as ACC, which is a non-protein amino acid widely found in fruits such as pears and apples. It is synthesized from methionine in plants, and finally produces ethylene after various steps of conversion in plants.
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Products Description of Alginic acid CAS#9005-32-7Alginic acid is a viscous organic acid, also known as alginic acid and alginic acid. The product is white to light yellow-brown powder. The average molecular weight is about 240,000. Melting point>300℃. It is slightly soluble in hot water, and the viscosity of its aqueous solution is 4 times higher than that of starch. It is insoluble in cold water and organic solvents, and slowly dissolves in alkaline solutions.
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Products Description of Octanoic acid CAS#124-07-2Caprylic acid is a medium-chain fatty acid. It has 8 carbons in its chain, so it is also called n-caprylic acid. Caprylic acid is considered an essential fatty acid, which is necessary for the proper functioning of the human body.
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Products Description of Sulfamic acid CAS#5329-14-6Aminosulfonic acid is a colorless, odorless and non-toxic solid strong acid. Its aqueous solution has the same strong acid properties as hydrochloric acid, sulfuric acid, etc., but its corrosiveness to metals is much lower than that of hydrochloric acid, etc. It is extremely toxic to the human body, but it cannot be in contact with the skin for a long time, let alone enter the eyes.Due to its strong acid properties, it is also called solid sulfuric acid.
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Products Description of Oxalic Acid CAS#144-62-7Oxalic acid is an organic substance with the chemical formula H₂C₂O₄. It is a metabolite of organisms, a medium-strong acid, widely distributed in plants, animals and fungi, and plays different functions in different organisms. Studies have found that more than 100 plants are rich in oxalic acid, especially spinach, amaranth, beet, purslane, taro, sweet potato and rhubarb.
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New Use of Poly-L-lactic Acid as Shape Memory MaterialBackground techniqueBiopolymer is an important medical polymer material with good biodischarge and bioabsorbability advantages. It has been widely used in outdoor fixation, tissue engineering stents, operation lines, drug control, etc. Polylactic acid is usually synthesized by the ring polymerization method of lactide. According to the difference of optical ring-opening polymerization, the lactide properties are divided into D-lactide properties, L-lactide properties and DL-lactide properties.
Sodium Hydroxide, also known as caustic soda or lye, with CAS#1310 - 73 - 2, is a highly significant chemical compound extensively utilized in diverse industries.Production and Market TrendsRecent data indicates notable production figures for Sodium Hydroxide across different regions. In 2023, China's December output of Sodium Hydroxide (equivalent to 100% purity) reached 3.69 million tons. This represented a month - on - month increase of 5.49% and a year - on - year growth of 7.7%.
New Use of Poly-L-lactic Acid as Shape Memory MaterialBackground techniqueBiopolymer is an important medical polymer material with good biodischarge and bioabsorbability advantages. It has been widely used in outdoor fixation, tissue engineering stents, operation lines, drug control, etc. Polylactic acid is usually synthesized by the ring polymerization method of lactide. According to the difference of optical ring-opening polymerization, the lactide properties are divided into D-lactide properties, L-lactide properties and DL-lactide properties.
The sugar that people often eat in daily life is extracted from sugarcane, sugar beet and other plants. There are also some substances in the plant kingdom that are sweeter than sucrose. Stevia, native to South America, is 200 to 300 times sweeter than sucrose; the West African bamboo skewers in the tropical forests of Africa are 3000 times sweeter than sucrose; there is also a vine plant of Dioscorea nigra with the sweetness of the fruit. 90,000 times that of sucrose.However, these substances, which are thousands of times sweeter than sucrose, are rarely seen.
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.
As early as 1780, the Swedish chemist Sheele discovered lactic acid from waste milk; the production of lactic acid by fermentation originated from the natural fermentation of Boutron and Fremy in 1941; the industrial production of lactic acid by pure fermentation was started by Charles E. Avery in 1881. began; and large-scale industrial production of L-lactic acid was formed in the early 1990s.
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.
Photoinitiators, also known as photosensitizers or photocuring agents, are a type of energy that can absorb certain wavelengths in the ultraviolet region (250-420nm) or visible region (400-800nm) to generate free radicals, cations, etc., thereby initiating monomer Polymerization crosslinks cured compounds.What is a photoinitiator?In the photocuring system, including UV glue, UV coating, UV ink, etc., after receiving or absorbing external energy, it undergoes chemical changes and decomposes into free radicals or cations, thereby initiating polymerization.All substances that can generate free ra
Niacinamide, also called nicotinamide, is an amide substance of niacin. White crystalline powder; odorless or nearly odorless, bitter in taste; slightly hygroscopic. Soluble in water or ethanol, soluble in glycerol.Because nicotinamide is a B vitamin derivative, as well as nicotinamide is additionally a component of coenzymes, it is an essential part of the body as a coenzyme of several dehydrogenases.
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