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 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 (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 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 POTASSIUM TITANATE CAS#12030-97-6Potassium titanate is a white solid with a relative density of 3.1 and a melting point of 1515°C.
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Products Description of Dioctyl sebacate CAS#122-62-3Dioctyl sebacate, also known as bis-2-ethylhexyl sebacate, referred to as DOS, is made by esterification of sebacic acid and 2-ethylhexanol. It is suitable for polyvinyl chloride, vinyl chloride copolymers, nitrocellulose, ethyl cellulose and synthetic rubber. It has high plasticizing efficiency and low volatility. It has excellent cold resistance, good heat resistance, light resistance and electrical insulation. It also has good lubricity when heated, making the product look good and feel good.
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Products Description of Potassium Hydroxide CAS#1310-58-3 Potassium hydroxide is an inorganic compound with the chemical formula KOH. It is a common inorganic base with strong alkalinity. The pH of 0.1 mol/L solution is 13.5. It is soluble in water and ethanol, slightly soluble in ether, and easily absorbs moisture in the air to become deliquescent. It absorbs carbon dioxide to form potassium carbonate.
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Products Description of Potassium Hydrogen Phthalate CAS#877-24-7Potassium Hydrogen Phthalate is an organic compound that appears as a white crystalline powder. It is stable in the air, soluble in water, and slightly soluble in alcohol.
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potassium methylsilanetriolate Chemical PropertiesBoiling point 112℃[at 101 325 Pa]density 1.388[at 20℃]Specific Gravity1.29Hydrolytic Sensitivity0: forms stable aqueous solutionsLogP0.780 (est)EPA Substance Registry SystemSilanetriol, methyl-, potassium salt (31795-24-1)Product Application of Potassium methyl siliconate CAS#31795-24-1Methylsilanetriol potassium salt is mainly used as a surface treatment agent and catalyst. It can be used to improve the wettability, water resistance and wear resistance of materials.
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Products Description of Sodium chloroacetateCAS#3926-62-3White powder. Solubility in water at 20℃ is 85g/100ml. Slightly soluble in methanol, insoluble in ether, benzene, acetone and carbon tetrachloride. Toxicity: Oral LD50 in rats is 75mg/kg.
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Products Description of Potassium methyl siliconate CAS#31795-24-1potassium methylsilanetriolate Chemical PropertiesBoiling point 112℃[at 101 325 Pa]density 1.388[at 20℃]Specific Gravity1.29Hydrolytic Sensitivity0: forms stable aqueous solutionsLogP0.780 (est)EPA Substance Registry SystemSilanetriol, methyl-, potassium salt (31795-24-1)Product Application of Potassium methyl siliconate CAS#31795-24-1Methylsilanetriol potassium salt is mainly used as surface treatment agent and catalyst.
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Products Description of Potassium bromate CAS#7758-01-2Potassium bromate is an inorganic compound with the chemical formula KBrO3. It is mainly used as an analytical reagent, oxidant, and wool bleaching agent.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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Potassium clavulanate CAS# 61177-45-5Product Overview:Potassium Clavulanate, also known as CLAVULANIC ACID POTASSIUM SALT with the CAS#61177-45-5, is a potent β-lactamase inhibitor that is revolutionizing the way we combat bacterial infections in the industrial pharmaceutical sector. As a key component in the synthesis of advanced antibiotics, our Cellulose Clavulanate is designed to meet the rigorous demands of modern manufacturing processes.Market Relevance:In the competitive landscape of the pharmaceutical industry, the need for effective antibacterial agents is paramount.
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Products Description of PERKADOX PF-DBM25CAS#1931-62-0White powderPERKADOX PF-DBM25 Chemical PropertiesMelting point 130-131 °CBoiling point 260.8±42.0 °C(Predicted)density 1.185±0.06 g/cm3(Predicted)vapor pressure 0.147Pa at 25℃storage temp. Flammables areapka2.38±0.25(Predicted)Water Solubility 642mg/L at 20℃LogP0.9 at 30℃CAS DataBase Reference1931-62-0EPA Substance Registry System2-Propeneperoxoic acid, 3-carboxy-, 1-(1,1-dimethylethyl) ester, (2Z)- (1931-62-0)Safety InformationHazard Codes Xn-ORisk Statements 7-41-36/38-22Safety Statements 
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Products Description of Potassium phosphate monobas CAS#7778-77-0Potassium dihydrogen phosphate (monopotassium orthophosphate) is a water-soluble inorganic salt. Its standard enthalpy of formation is -376.1 kcal/mol.
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Products Description of Potassium phosphate CAS#778-53-2Potassium phosphate is a reagent with high buffering capacity, It serves as a buffering agent to regulate pH, Typically used as a component for a wide variety of media used in the culture of microorganisms, as a component in phosphate buffered saline (PBS). It occurs in several forms: monobasic, dibasic, and tribasic (K3PO4). Most pH neutral potassium phosphate buffer solutions consist of mixtures of the monobasic and dibasic forms to varying degrees, depending on the desired pH.
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1H-Benzotriazole CAS #95-14-71H-Benzotriazole is prepared by the reaction of o-phenylenediamine with nitrous acid in dilute sulfuric acid. Damschrodner and Peterson were able to synthesize the 1H-benzotriazole in a high yield (80%) by nitrosation of o-phenylenediamine with sodium nitrite in glacial acetic acid and water.1H-Benzotriazole is an anticorrosive agent, which is useful in aircraft deicing and antifreeze fluids. It is also employed in dishwasher detergents.
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Products Description of Benzenesulfinic Acid Sodium Salt CAS#873-55-2Benzenesulfinic Acid Sodium Salt is white crystal or white powder with a melting point of 300°C. It is stable at room temperature and pressure and avoids contact with oxides.
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Products Description of 2,2-Dibromo-2-cyanoacetamide CAS#10222-01-2White crystals. Melting point 125℃, soluble in general organic solvents (such as acetone, benzene, dimethylformamide, ethanol, polyethylene glycol, etc.), slightly soluble in water (100g water dissolves 1.5g at 25℃). Its aqueous solution is relatively stable under acidic conditions and easily hydrolyzed under alkaline conditions. Increasing pH value, heating, ultraviolet light or fluorescent irradiation can greatly accelerate its dissolution rate.
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Products Description of 2,2'-[(1-Methylethylidene)bis[(dibromo-4,1-phenylene)oxymethylene]]bis[oxirane]-4,4'-(1-methylethylidene)bis[2,6-dibromophenol] copolymer CAS#68928-70-1Tetrabromobisphenol A-tetrabromobisphenol A glycidyl ether copolymer is widely used in flame retardant potting materials, flame retardant laminate adhesives, etc.
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Products Description of 4,4'-Diamino-2,2'-Stilbenedisulfonic Acid CAS#81-11-8 4,4'-diaminostilbene-2,2'-disulfonic acid, an organic chemical substance, molecular formula: C14H14N2O6S2.4,4'-Diamino-2,2'-stilbenedisulfonic acid Chemical PropertiesMelting point 300 °Cdensity 1.4732 (rough estimate)vapor pressure 1.3hPa at 25℃refractive index 1.6510 (estimate)storage temp. Keep in dark place,Inert atmosphere,Room temperaturesolubility Aqueous Base (Slightly)pka-1.58±0.50(Predicted)form Crystalline Powdercolor Cream to yellow
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Products Description of 2,2-Dimethylthiazolidine CAS#19351-18-92,2-Dimethylthiazolidine, an organic chemical substance, molecular formula: C5H11NS.2,2-Dimethylthiazolidine Chemical PropertiesBoiling point 61 °C / 15mmHgdensity 1,02 g/cm3vapor pressure 2.01hPa at 25℃refractive index 1.5100-1.5140Fp 55°Cstorage temp. 2-8°C(protect from light)pka8.97±0.40(Predicted)form clear liquidcolor Colorless to Light orange to YellowInChIInChI=1S/C5H11NS/c1-5(2)6-3-4-7-5/h6H,3-4H2,1-2H3InChIKeySNPQRYOQWLOTFA-UHFFFAOYSA-NSMILESS1CCNC1(C)CLogP1.38CAS DataBase Refer
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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.
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.
Acetic Acid: A Versatile Compound with Numerous ApplicationsAcetic acid, commonly known as ethanoic acid, is an organic compound with the chemical formula CH₃COOH. It’s a colorless liquid with a pungent smell and sour taste.
Latest Developments in Acetic Acid ProductionRecent advancements in the production of acetic acid highlight a significant shift towards more sustainable and innovative methods. Acetic acid, an essential organic compound, is increasingly produced through biotechnological processes and carbon dioxide (CO2) conversion, reflecting the industry's commitment to sustainability.Bioproduction Innovations: The biological production of acetic acid is gaining traction as a sustainable alternative. Techniques such as genetic engineering are being utilized to enhance yields and reduce production costs.
Sericin protein is a natural macromolecular protein wrapped on the surface of silk fibroin. It is mainly secreted by the silk glands of silkworms and is one of the main proteins that make up the silkworm cocoon.
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.
In terms of market conditions, the price trend and supply - demand relationship of ammonium sulfate have always attracted much attention. Since the beginning of this year, the ammonium sulfate market has been affected by a combination of various factors. During the spring ploughing and fertilization preparation period, the overall demand in the fertilizer market has fluctuated, and ammonium sulfate, as a type of nitrogen fertilizer, has also been implicated. Domestically, its price has experienced ups and downs.
Glycerin: A Versatile Compound with Numerous ApplicationsGlycerin, also known as glycerol, is a simple polyol compound with a sweet taste and syrupy texture. It is widely used in various industries, including cosmetics, pharmaceuticals, and food. Due to its unique properties, such as being hygroscopic (attracting water) and non-toxic, glycerin has become an indispensable ingredient in many products.Glycerin in CosmeticsMoisturizer: Glycerin is one of the most effective humectants, drawing moisture from the air and into the skin.
Erythromycin, chloramphenicol, and clindamycin are all called “mycins”. What are the differences in their effects?There are many drugs with the word “mycin”, such as erythromycin, chloramphenicol, clindamycin, gentamicin, etc. are very common. So, how should these “mycins” be distinguished?
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