CefepiMe iMpurity G-manufacture,factory,supplier from China

(Total 24 Products for CefepiMe iMpurity G)
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 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 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 Dextrin CAS#9004-53-9White amorphous powder, odorless, slightly sweet taste.Dextrin Chemical PropertiesMelting point 53.75-54 °Cdensity 0.8 g/cm3storage temp. Store at RT.solubility H2O: 0.1 g/mL hot, complete, yellow to very deep yellowform powdercolor yellowOdorodorlessWater Solubility Soluble in hot water (0.1 g/ml).Sensitive HygroscopicMerck 14,2953Dielectric constant2.2(Ambient)Stability:Stable. Combustible.
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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 Pentaerythritol triacrylate CAS#3524-68-3For photosensitive filmPentaerythritol triacrylate Chemical PropertiesMelting point 15℃Boiling point 359.71°C (rough estimate)density 1.18 g/mL at 25 °C (lit.)refractive index n20/D 1.483(lit.)Fp >230 °Fstorage temp. Inert atmosphere,Room Temperaturesolubility Chloroform (Slightly), Methanol (Slightly)pka13.63±0.10(Predicted)form Liquidcolor ColorlessSpecific Gravity1.16-1.19Water Solubility Immiscible with water.Sensitive HygroscopicBRN 6598752Stabilit
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Products Description of CARAMEL CAS#8028-89-5Caramel color is one of the food colorings with the longest history of human use. It is also the most widely used and popular food additive currently used by people. It has high color rate and strong coloring ability, reflecting the unique reddish brown color of fermented soy sauce, which is ruddy and bright. It has moderate viscosity, good solubility, high salt tolerance and stable quality.CARAMEL Chemical Propertiesdensity 1.35 g/cm3FEMA 2235 | CARAMEL COLOROdorat 100.00 %.
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Products Description of SILICA CAS#10279-57-9Used as filler for paints and coatings, rubber reinforcing agent, plastic tackifier and thixotropic agent, thickener for synthetic grease and silicone greaseSILICA Chemical PropertiesMelting point 1610 °C(lit.)Boiling point >100 °C(lit.)density 2.6 g/mL at 25 °C(lit.)refractive index n20/D 1.544(lit.)storage temp. no restrictions.form tablets (~0.5 g each)Water Solubility Insoluble in water.Exposure limitsNIOSH: IDLH 3000 mg/m3; TWA 6 mg/m3EPA Substance Registry SystemSilica, h
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Products Description of Tetrabutylammonium Perchlorate CAS#1923-70-2Tetrabutylammonium perchlorate is used as a research compound, in medicine, and as an electrolyte in electrochemical gradeTetrabutylammonium perchlorate Chemical PropertiesMelting point 211-215 °Cdensity 1.0387 (rough estimate)refractive index 1.6800 (estimate)solubility acetonitrile: 0.1 g/mL, clear, colorlessform Crystalline Powdercolor WhiteWater Solubility Soluble in acetonitrile and ethanol.
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Products Description of Tin sulfate CAS#7488-55-3White or light yellow crystalline powder. Soluble in water, solubility 33g/100ml water at 35℃. Soluble in dilute sulfuric acid.Stannous sulfate Chemical PropertiesMelting point 360 °Cdensity 4,15 g/cm3vapor pressure 0Pa at 20℃storage temp. no restrictions.form SolidSpecific Gravity1.35color White to off-whitePH1.6 (50g/l, H2O, 20℃)Water Solubility 330 g/L (20 ºC)Merck 14,8790Exposure limitsACGIH: TWA 2 mg/m3NIOSH: IDLH 100 mg/m3; TWA 2 mg/m3Stability:Stable, but moisture sensitive.
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Products Description of BISMUTH SULFIDECAS#1345-07-9Bismuth sulfide is brown-yellow powder or crystal, with a specific gravity of 7.39. It decomposes at 685℃. It is insoluble in water and ethyl acetate, but soluble in nitric acid and hydrochloric acid.BISMUTH SULFIDE Chemical PropertiesMelting point 685°C (dec.)density 7.7 g/mL at 25 °C(lit.)solubility insoluble in H2O; soluble in acid solutionsform LumpSpecific Gravity7.7color GrayWater Solubility Insoluble in water.
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Products Description of 3,4-Dimethoxythiophene CAS#51792-34-83,4-Dimethoxythiophene is an organic compound with the molecular formula C6H8O2S.3,4-Dimethoxythiophene Chemical PropertiesBoiling point 100-102 °C/10-11 mmHgdensity 1.209 g/mL at 25 °Crefractive index 1.5409Fp 224 ºFstorage temp. -20°Cform powder to lump to clear liquidcolor White or Colorless to YellowWater Solubility Miscible with organic solvents.
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Products Description of 3,5-Dimethylacetophenone CAS#5379-16-83,5-Dimethylacetophenone is a chemical substance with the chemical formula C10H12O and a molecular weight of 148.21.3,5-DIMETHYLACETOPHENONE Chemical PropertiesMelting point 20°CBoiling point 98-100°C 8mmdensity 0,988 g/cm3refractive index 1.5290Fp 98-100°C/8mmstorage temp. Sealed in dry,Room Temperatureform powder to lump to clear liquidcolor White or Colorless to Almost white or Almost colorlessλmax251nm(MeOH)(lit.)BRN 2240987Safety InformationSafety Statements 24/25HS Code&nb
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Products Description of Phosphorous acidCAS#13598-36-2Colorless crystals. Easily soluble in water and alcohol.Phosphorous acid Chemical PropertiesMelting point 73 °CBoiling point 200 °Cdensity 1.651 g/mL at 25 °C(lit.)vapor pressure 0.001Pa at 20℃Fp 200°Cstorage temp. 0-6°Csolubility DMSO (Slightly), Methanol (Slightly), Water (Sparingly)form CrystalspkapK1 1.29; pK2 6.74(at 25℃)Specific Gravity1.651color WhiteWater Solubility SOLUBLESensitive Air Sensitive & HygroscopicMerck 14,7346Stability:Stable.
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Products Description of Sodium mercaptobenzothiazole CAS#2492-26-4Sodium 2-Mercaptobenzothiazole is a compound with a molecular weight of 189.22 and a molecular formula of C7H4NNAS2.Sodium mercaptobenzothiazole Chemical PropertiesMelting point -6 °CBoiling point 103 °Cdensity 1,255 g/cm3vapor pressure 0Pa at 25℃storage temp. under inert gas (nitrogen or Argon) at 2-8°Cform liquidcolor White to Orange to GreenWater Solubility >=10 g/100 mL at 20 ºCCAS DataBase Reference2492-26-4(CAS DataBase Reference)EPA Substance Registry SystemSodium mercaptobe
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Products Description of Polyisobutylene CAS#9003-27-4Ammonium Chloride (CAS#12125-02-9) is a white crystalline salt that is highly soluble in water, with a solubility of 37.2 g/100 g at 20°C. It is a crucial component in agricultural fertilizers, providing essential nitrogen for plant growth. This compound is also used as a feed additive and in various industrial applications due to its versatility. In agriculture, Ammonium Chloride is valued for its ability to enhance soil fertility and promote robust plant development.
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Products Description of Octadecanethiol CAS#2885-00-9Octadecanethiol, molecular formula C18H38S.Octadecanethiol Chemical PropertiesMelting point 30-33 °C(lit.)Boiling point 204-210 °C11 mm Hg(lit.)density 0.847 g/mL at 25 °C(lit.)vapor pressure <0.5 hPa (20 °C)refractive index n20/D 1.3610Fp 55 °Fstorage temp. Store below +30°C.form Crystalline Solidpka10.49±0.10(Predicted)Specific Gravity0.832 (30℃)0.847color WhiteWater Solubility InsolubleBRN 1811934Exposure limitsNIOSH: Ceiling 0.5 ppm(5.9
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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 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 2,5-Dibromothiophene CAS#3141-27-32,5-Dibromothiophene is the light yellow transparent liquid, boiling point 211℃, melting point -6℃, relative density 2.147.2,5-Dibromothiophene Chemical PropertiesMelting point -6 °C (lit.)Boiling point 211 °C (lit.)density 2.147 g/mL at 25 °C (lit.)refractive index 1.627-1.63Fp 99 °Cstorage temp. Keep in dark place,Sealed in dry,Room Temperaturesolubility Chloroform, Methanolform Liquidcolor Clear pale yellow to brownSpecific Gravity2.147Water Solubility practically insol
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Products Description of Bismuth citrate CAS#813-93-4Used as an intermediate of bismuth potassium citrateBismuth citrate Chemical PropertiesMelting point 300 °C (dec.) (lit.)density 0.94 g/mL at 25 °C (lit.)vapor pressure 0Pa at 20℃storage temp. -20°C Freezersolubility Water (Very Slightly)form Crystalline Powdercolor WhiteWater Solubility Insoluble in water, alcohol, ether. Soluble in ammonia solution and in solution of alkali citrates. Typical tap density 0.50g/cm^3.Soluble in ammonia, alkali citrates.
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Products Description of (2S)-(+)-2,5-Dihydro-3,6-dimethoxy-2-isopropylpyrazine CAS#78342-42-4(S)-2,5-Dimethoxy-3-isopropyl-3,6-dihydropyrazine.Molecular formula: C9H16N2O2.Molecular weight: 184.24 g/mol(2S)-(+)-2,5-Dihydro-3,6-dimethoxy-2-isopropylpyrazine Chemical Propertiesalpha 102 º (c=1%, EtOH)Boiling point 245.2±33.0 °C(Predicted)density 1.028 g/mL at 20 °C (lit.)storage temp. Sealed in dry,2-8°Csolubility Chloroform (Slightly), DMSO (Slightly), Ethanol (Sparingly), Methanol (Slightly)pka3.81±0.60(Predicted)form Liquidcolor Clear colorless to pale
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Products Description of Polymethylene polyphenyl polyisocyanate CAS#9016-87-9Brown transparent liquid with pungent odor.Polymethylene polyphenyl polyisocyanate Chemical PropertiesBoiling point 392 °C5 mm Hgdensity 1.2 g/mL at 25 °C(lit.)vapor density 8.6 (vs air)refractive index n20/D 1.634Fp >230 °Fstorage temp. Refrigerator, Under inert atmospheresolubility DMSO (Sparingly), Ethyl Acetate (Slightly), Methanol (Soluble)form Oilcolor Yellow to OrangeStability:Stable.
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Products Description of M-Phenylenediamine (m-PDA) CAS#108-45-2Meta-phenylenediamine is an important raw material for organic synthesis. It is mainly used as a dye intermediate to produce basic orange, basic brown G, direct sunfast black G and other dyes. It is also used as fur dye and epoxy resin. It is used as a curing agent, cement coagulant, mordant, color developer, etc.
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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.
Dextran refers to a homopolysaccharide composed of glucose as a monosaccharide. The difference in the length of the dextran chain determines its different medicinal value. Long-chain dextran is usually a blood volume expansion drug with a molecular weight of tens of thousands to hundreds of thousands; while short-chain dextran can be complexed with ferric hydroxide , made of iron dextran, that is, iron dextran.What is Dextran?Dextran is a high-molecular glucose polymer synthesized from sucrose catalyzed by dextran sucrase (dextransucrase EC2.4.1.5) produced by Leuconostocmesenteroides.
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.
What is Sodium Cocoyl Isethionate?Sodium cocoyl isethionate is a fine white powder extracted from coconut oil. It’s a sodium salt known to be mild on the skin. That the process involved mixing a natural sulfonic acid called hydroxyethyl sulfonic acid with fatty acids naturally found in coconut oil. Most commonly, you will find this ingredient on the back of shampoo, shower gel, detergent and soap bar because it is considered a surfactant.Surfactants are used as cleaners because they mix well with oil and water.
Global Market Insights: Industrial-Grade Acetic Acid (CAS#64-19-7) - Trade Dynamics and Chemical ProfilingIntroduction: The chemical industry is at the forefront of global innovation, and acetic acid (CAS#64-19-7), a key player in this sector, is no exception. This article delves into the current state of the global market for industrial-grade acetic acid, recent developments, trade patterns, and the chemical properties that define its utility.Market Overview:The global acetic acid market, valued at over $1.1 billion in 2016, is projected to witness a CAGR of more than 6% from 2017 to 2024.
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.
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.
CAS#433711-95-6 IntroductionThe chemical compound (2-Bromo-pyridin-4-yl)carbamic acid tert-butyl ester, also known as CAS#433711-95-6, is a key intermediate in the synthesis of various pharmaceuticals and agrochemicals. This compound is widely used in the chemical industry due to its unique properties and versatile applications.
Sodium Lauryl Sulfate (SLS)Sodium Lauryl Sulfate (CAS No.: 751-21-3), is a white or light yellow slightly sticky substance, which is often used in the detergent and textile industries in industry. It is an anionic surfactant.
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
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