Diazepam Impurity C-manufacture,factory,supplier from China

(Total 24 Products for Diazepam Impurity C)
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 Bretazenil CAS#84379-13-5Brotacetin is a partial agonist of the GABAA receptor of the benzodiazepine class. It was first developed by Roche as an antianxiety drug. Studies have found that brotacetin can counteract the spasms caused by pentamethazine. At an antispasmodic dose (125-250 μg·kg-1), brotacetin combined with pyridostigmine (100 μg·kg-1, im) and aprofen (4 mg·kg-1, im) can prevent sarin and soman poisoning. Brotacetin has good antianxiety activity at a dose of 50-400 μg·kg-1. Compared with diazepam, it has little adverse reaction of myasthenia.
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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 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 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 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 3,4-Dibromothiophene CAS#3141-26-23,4-Dibromothiophenol is a colorless to pale yellow liquid with a boiling point of 221-222°C and a melting point of 4-5°C.3,4-Dibromothiophene Chemical PropertiesMelting point 4-5 °C (lit.)Boiling point 221-222 °C (lit.)density 2.188 g/mL at 25 °C (lit.)refractive index n20/D 1.640(lit.)Fp >230 °Fstorage temp. Keep in dark place,Sealed in dry,Room Temperatureform Liquidcolor Clear colorless to yellowSpecific Gravity2.188BRN 107642InChIKeyVGKLVWTVCUDISO-UHFFFAOYSA-NCAS DataBa
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Products Description of Ademetionine 1,4-butanedisulfonate CAS#101020-79-5S-Adenosylmethionine 1,4-butanedisulfonate is used to synthesize sulfo-adenosyl-L-methionine (SAMe) salt.Ademetionine 1,4-butanedisulfonate Chemical PropertiesMelting point >48oC (dec.)storage temp. under inert gas (nitrogen or Argon) at 2-8°Csolubility DMSO (Slightly, Heated), Methanol (Slightly), Water (Slightly)form Solidcolor Off-WhiteStability:HygroscopicInChIKeyPVCDYZJGZPCASW-FGEWMKOMNA-MSMILESC(CCCS(O)(=O)=O)S(O)(=O)=O.O[C@@H]1[C@@H]([C@@H](C[S+](C)CC[C@H](N)C(=O)O)O[C@H]1N1C=NC2C(
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Products Description of Titanium tetrachloride CAS#7550-45-0Titanium tetrachloride is the most important titanium halide and an important raw material for the production of titanium sponge and chloride-process titanium dioxide. Pure titanium tetrachloride is a colorless, transparent, high-density, non-conductive liquid with a chemical formula of TiCl4 and a relative density of 1.726. The melting point is -25°C and the boiling point is 136.4°C. It has a pungent sour taste and is easily hydrolyzed, generating white smoke in humid air. It dissolves in water and decomposes at the same time.
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Products Description of 2,2,4-TrimethylpentaneCAS#540-84-1Isooctane is a colorless liquid with a high octane number and is therefore widely used as a gasoline additive.2,2,4-Trimethylpentane Chemical PropertiesMelting point -107 °CBoiling point 98-99 °C(lit.)density 0.692 g/mL at 25 °C(lit.)vapor density 3.9 (vs air)vapor pressure 41 mm Hg ( 21 °C)refractive index n20/D 1.391(lit.)Fp 18 °Fstorage temp. Store at +5°C to +30°C.solubility water: insolubleform Liquidpka>14 (Schwarzenbach et al., 1993)Specific Gravity0.692 (20
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Products Description of Bisphenol A CAS#80-05-7Bisphenol A (BPA), scientifically known as 4,4'-Isopropylidenediphenol, is a white crystalline solid that is combustible and has a faint phenolic odor. It is characterized by a relative density of 1.195, a melting point ranging from 155 to 158°C, and a boiling point between 250 to 252°C, with a flash point at 79.4°C.
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2,3,4,6-Tetra-O-benzyl-D-glucopyranose Chemical PropertiesMelting point 145-149 °C(lit.)Boiling point 672.4±55.0 °C(Predicted)density 1.22±0.1 g/cm3(Predicted)storage temp. Sealed in dry,Store in freezer, under -20°Csolubility Soluble in chloroformpka11.87±0.70(Predicted)form Solidcolor White to Off-Whiteoptical activity[α]20/D +49±2°, c = 2% in dioxaneInChIKeyOGOMAWHSXRDAKZ-BKJHVTENSA-NSMILESOC1O[C@H](COCC2=CC=CC=C2)[C@@H](OCC2=CC=CC=C2)[C@H](OCC2=CC=CC=C2)[C@H]1OCC1=CC=CC=C1CAS DataBase Reference4132-28-9(CAS DataBase Reference)Safety InformationHazard
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Products Description of Aminopyrazine CAS#5049-61-6Aminopyrazine is the matrix for the four-component synthesis of imidazolidinediones, an organic synthesis intermediate and a pharmaceutical intermediat.Aminopyrazine Chemical PropertiesMelting point 118-120 °C (lit.)Boiling point 167.6°C (rough estimate)density 1.1031 (rough estimate)refractive index 1.5200 (estimate)storage temp. Keep in dark place,Inert atmosphere,Room temperaturesolubility soluble in Methanolpka3.22±0.10(Predicted)form Crystalline Powdercolor Slightly yellow to beigeWater Solubil
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Products Description of Dibutylamine CAS#111-92-2Pure di-n-butylamine is a colorless liquid, m.p.-60℃ (-61.9℃), b.p.159℃ (48℃/1.73kPa), n20D1.4177, relative density 0.767 (20℃), f.p.41℃, soluble in water, acetone and benzene, and easily soluble in ethanol and ether.Dibutylamine Chemical PropertiesMelting point −62 °C(lit.)Boiling point 159 °C(lit.)density 0.767 g/mL at 25 °C(lit.)vapor density 4.46 (vs air)vapor pressure 1.9 mm Hg ( 20 °C)refractive index n20/D 1.417(lit.)Fp 106 °Fstorage temp. Store below +30°C.so
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Products Description of Salicylaldehyde CAS#90-02-8Salicylaldehyde is a light yellow oily clear liquid with a melting point of -7°C and a boiling point of 197°C. It has a burning and almond smell.
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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 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 D-(-)-PANTOLACTONE CAS#599-04-2Hygroscopic crystals (benzene/petroleum ether, or obtained by sublimation). Melting point 80 (92°C), boiling point 130°C/2.4kPa, easily soluble in water, soluble in ethanol, ether, chloroform, carbon disulfide, benzene.
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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 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 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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Products Description of Iminodibenzyl CAS#494-19-9Iminodibenzyl is a chemical substance with the molecular formula C14H13N.Iminodibenzyl Chemical PropertiesMelting point 105-108 °C (lit.)Boiling point 321.94°C (rough estimate)density 1.0778 (rough estimate)refractive index 1.6353 (estimate)storage temp. Keep in dark place,Sealed in dry,Room Temperaturesolubility Chloroform (Slightly), Ethyl Acetate (Slightly, Heated), Methanol (Slightly)form Crystalline Powderpka0.83±0.20(Predicted)color Yellow to beigeBRN 152732LogP4.27CAS DataBase Reference49
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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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Introduction of Capsaicin PepperThe spicy ingredients contained in pepper fruit are capsaicin pepperoids, including: capsaicin pepper, dihydrocapsaicin pepper, nordihydrocapsaicin pepper, homocapsaicin pepper, homodihydrocapsaicin pepper I, homodihydrocapsaicin pepper II, Nonoyl vanillylamide, Decoyl vanillylamide, Capryl vanillylamide. Capsanthin includes Cryptoxanthin, Capsanthin, Capsorubin, Carotene; also contains vitamin C, citric acid, tartaric acid, malic acid, protein, minerals, etc. .
Hydroxyethylidene diphosphonic acid characteristics:HEDP(Hydroxyethylidene Diphosphonic Acid) is an organic phosphoric acid and corrosion inhibitor, which can form stable complexing agent with iron, copper, zinc and other metal ions, and can dissolve oxides on the metal surface. HEDP can still play a good role in corrosion and scale inhibition at 250°C, is still very stable at high pH values, not easy to be hydrolyzed, and not easy to decompose under general light and heat conditions.
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.
Introduction2-ethyl-3-hydroxy-6-methylpyridine, also known as 2-ethyl-6-methyl-3-pyridinol, is a chemical compound with the molecular formula C8H11NO. Its CAS number is 2364-75-2. This compound is widely used in the chemical industry as a building block for the synthesis of various chemicals. In this article, we will discuss the properties, uses, and synthesis of 2-ethyl-3-hydroxy-6-methylpyridine.Properties2-ethyl-3-hydroxy-6-methylpyridine is a white to off-white crystalline powder with a melting point of 88-92°C. It is soluble in water, ethanol, and other organic solvents.
Pectin is a sort of all-natural polymer substance, which generally exists in all greater plants as well as is an important component of plant intercellular compound. Pectin is transferred in the key cell wall as well as intercellular layer, and cross-links with various components of cellulose, hemicellulose, lignin microfibrils as well as some extensin in the primary wall to make various cell cells frameworks Difficult, exhibiting an intrinsic shape, and also a supporting material for internal cells.
Dimethyl Disulfide (DMDS) Industry Sees Growing Demand Amidst Industrial Expansion[City, State] – [Date] – The global dimethyl disulfide (DMDS) market is experiencing significant growth, driven by the increasing demand from various industries.
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.
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.
Vitamin B2 is an essential nutrient for the human body, and it is an essential substance to form the surface of human tissues and organs.Vitamin B2 cannot be stored in the human body, but the human body needs it every day, so it must be supplemented from food every day.A slight deficiency of vitamin B2 will not feel anything in the body, but when it reaches a certain level, obvious symptoms will appearWhat type of nutrient is Vitamin B2?Vitamin B2 is a member of the vitamin B group. It is a water-soluble vitamin. After being absorbed by the human body, there is not much retention in the body.
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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