PVPD-manufacture,factory,supplier from China

(Total 24 Products for PVPD)
Products Description of α-galactosidaseCAS#9025-35-8α-Galactosidase is a glycoside hydrolase that catalyzes the hydrolysis of α-galactosidic bonds. It can hydrolyze D-galactose residues bound by α-1,6 bonds at the non-reducing end, as well as oligosaccharides such as honey, raffinose, stachyose and verbascose.
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Products Description of KERATINCAS#68238-35-7Fibrous protein produced by animal epithelial cells. It is the main component of hair, feathers, horns, nails, hooves, silk, etc., and has a protective effect on animals. It can be divided into two categories: one is α-keratin, such as the protein of hair, horns, nails, hooves, etc., which is rich in cystine in the molecule; the other is β-keratin, such as silk fibroin, which does not contain cystine and cysteine in the molecule, but has a high content of glycine, alanine and serine.
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Products Description of SODIUM DIHYDROGEN CITRATE CAS#18996-35-5Colorless crystals or white crystalline powder, odorless, salty and slightly sour. Soluble in water, insoluble in ethanol. Ph value of 10% aqueous solution is 3.4-3.8.
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POLY(METHYLSTYRENE-CO-INDENE) CAS#69430-35-9It has good thermal stability and chemical stability, and is not prone to chemical reactions under normal conditions. However, under extreme conditions such as high temperature, strong acid, and strong alkali, its chemical structure may be affected to a certain extent.
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Products Description of Sodium gualenate CAS#6223-35-4Sodium azulene sulfonate is unstable and will decompose under light, air oxidation and high temperature, and it is easy to remove the sulfonic acid group.
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Products Description of 4-Chloroquinoline CAS#611-35-84-Chloroquinoline is a key intermediate commonly used in the synthesis of quinoline derivatives with important biological activities.
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Products Description of 2,7-naphalenedisulfonic acid CAS#1655-35-2 Sodium 2,7-naphthalene disulfonate, white powder, is mainly used in organic synthesis and dye industry.2,7-Naphthalenedisulfonic acid disodium salt Chemical Propertiesform powder to crystalcolor White to Light yellow to Light orangeCAS DataBase Reference1655-35-2(CAS DataBase Reference)EPA Substance Registry System2,7-Naphthalenedisulfonic acid, disodium salt (1655-35-2)Safety InformationHazard Codes XiRisk Statements 36/37/38Safety Statements 37/39-26Hazard Note IrritantHS Code 2904
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Antioxidant 1035 Chemical PropertiesMelting point 78 °CBoiling point 659.4±55.0 °C(Predicted)density 1.072±0.06 g/cm3(Predicted)storage temp. Sealed in dry,Room Temperaturesolubility DMSO (Slightly), Methanol (Slightly)form Solidpka12.02±0.40(Predicted)color White to Off-WhiteCAS DataBase Reference41484-35-9(CAS DataBase Reference)EPA Substance Registry SystemThiodi-2,1-ethanediyl bis[3,5-di-tert-butyl-4-hydroxyhydrocinnamate] (41484-35-9)Safety InformationRTECS DA8342500HS Code 2930.90.2900Factory and Equipment ShowFast delivery timeInventory 2-3 w
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Products Description of 4-Methylbenzenesulfonhydrazide CAS#1576-35-8p-Toluenesulfonylhydrazine, also known as 4-methylbenzenesulfonylhydrazine, is a white crystalline powder, easily soluble in alkali, soluble in methanol, ethanol and butanone, slightly soluble in water and aldehydes, and insoluble in benzene and toluene. It is used as a foaming agent for natural rubber, synthetic rubber and a variety of plastics, making plastics and rubber products have fine closed-cell structures, small shrinkage and high tear strength.
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Products Description of 4-Methylbenzenesulfonhydrazide CAS#1576-35-8p-Toluenesulfonyl hydrazide, also known as 4-methylbenzenesulfonylhydrazide, is a white crystalline powder, easily soluble in alkali, soluble in methanol, ethanol and butanone, slightly soluble in water and aldehydes, and insoluble in benzene and toluene. It is used as a foaming agent for natural rubber, synthetic rubber and various plastics to produce fine closed-cell structures in plastics and rubber products. The products have small shrinkage and high tear resistance.
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Products Description of POLYIMIDE RESIN CAS#62929-02-6Yellow powderPOLYIMIDE RESIN Chemical PropertiesMelting point >300°Cdensity 1.2Fp >93°(199°F)form PowderSpecific Gravity1.2color YellowWater Solubility Insoluble in water.EPA Substance Registry System1,3-Isobenzofurandione, 5,5'-carbonylbis-, polymer with 1(or 3)-(4-aminophenyl)-2,3-dihydro-1,3,3(or 1,1,3)-trimethyl-1H-inden-5-amine (62929-02-6)Factory and Equipment ShowFast delivery timeInventory 2-3 working days New production 7-10 working days
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Products Description of 5-Chlorothiophene-2-Sulfonamide CAS#53595-66-72-Chlorothiophene-5-sulfonamide is a white powder crystal, which is often used as a pharmaceutical intermediate and pharmaceutical raw material.5-Chlorothiophene-2-Sulfonamide Chemical PropertiesMelting point 113-117 °C(lit.)Boiling point 366.3±52.0 °C(Predicted)density 1.649±0.06 g/cm3(Predicted)storage temp. under inert gas (nitrogen or Argon) at 2–8 °Csolubility soluble in Methanolform powder to crystalpka9.75±0.60(Predicted)color White to Light yellow to GreenCAS DataBase Refe
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Products Description of 1,3,5-Benzenetricarboxylic acid chlorideCAS#4422-95-1White powder1,3,5-Benzenetricarboxylic acid chloride Chemical PropertiesMelting point 32-38 °C (lit.)Boiling point 180 °C/16 mmHg (lit.)density 1.487 g/mL at 25 °C (lit.)refractive index 1.5945-1.5965Fp >230 °Fstorage temp. Store below +30°C.solubility decomposesform Liquidcolor Clear colorless to slightly yellowWater Solubility decomposesSensitive Moisture SensitiveBRN 2940936CAS DataBase Reference4422-95-1(CAS DataBase Reference)NIST Chemistry
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Products Description of 6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride CAS#2328-12-36,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride is a chemical with CAS number 2328-12-36,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride Chemical PropertiesMelting point 260-265 °C(lit.)storage temp. Keep in dark place,Sealed in dry,Room Temperaturesolubility soluble25mg/mL, clear, colorless (1N NaOH in methanol)form Shiny Flakes or Crystalline Powdercolor White to slightly beigeBRN 3634126InChIKeySHOWAGCIRTUYNA-UHFFFAOYSA-NCAS DataBase Ref
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Products Description of METHYL LAURATE CAS#111-82-0Obtained by esterification of lauric acid and methanol. Heat the mixture of lauric acid, anhydrous methanol and concentrated sulfuric acid to reflux for 18 hours, pour the reaction into water, and separate the ester layer. Wash with water, saturated sodium bicarbonate solution and water in turn.
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Products Description of tert-Butyl hydroperoxide CAS#75-91-2Tert-butyl hydroperoxide, also known as tert-butanol hydroperoxide, is an organic compound with the chemical formula C4H10O2. It is a colorless and transparent liquid, slightly soluble in water, and easily soluble in most organic solvents such as ethanol and ether.
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Products Description of Potassium carbonate CAS#584-08-7Potassium carbonate (chemical formula: K2CO3, English Potassium carbonate), also known as potash, has the appearance of colorless crystals or white particles, is very soluble in water, and its solution is strongly alkaline. When its saturated aqueous solution is cooled, a glassy monoclinic hydrate 2K2CO3·3H2O crystal is separated, with a density of 2.043, and loses crystal water at 100°C. It is insoluble in ethanol, acetone and ether.
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Hexane CAS# 110-54-3Hexane is a incredibly flammable, colorless, volatileliquid with a gasoline-like odor. The water/odor threshold is0.0064 mg/L and the air/odor threshold is 230- 875 mg/m'Molecular weight= 86.20; Specific gravity (H2O:1)= 0.66; .Boiling factor = 68.9℃; FreezingMelting point= -139.49C; .Relative vapordensity (air= 1)= 3.0; V aporpressure = 124 mmHg at 20℃; Flash point=一21.6℃ (cc);Autoignition temperature = 225℃.Explosivelimits: .LEL= 1.1%, UEL= 7.5%.
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Products Description of Diethylamino hydroxybenzoyl hexyl benzoate CAS#302776-68-7Diethylamino hydroxybenzoyl hexyl benzoate is an organic peroxide with strong oxidizing effect. It is easy to produce highly active free radicals during thermal decomposition. It is thermally unstable and may decompose at relatively low temperatures. During the decomposition process of diethylamino hydroxybenzoyl hexyl benzoate, a large amount of heat and gas is released, which increases the temperature and accelerates the decomposition.
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Tetrachloroethylene CAS#127-18-4 Tetrachloroethylene (chemical method Cl2C=CCl2) is a chlorinate hydrocarbon used as an industrial solvent and cooling liquid in electrical transformers. It is a colorless, volatile, nonflammable liquid with an ether-like odor. The most important section of tetrachloroethylene is produced by means of excessive temperature chlorinolysis of mild hydrocarbons.Tetrachloroethylene is an awesome solvent for natural materials.
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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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EDTA-4Na CAS#67401-50-7Overview:EDTA-4Na, with the chemical formula C10H19N2NaO9 and CAS number 67401-50-7, is a widely recognized chelating agent known as edta4na or 4na edta.
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Products Description of Dimefluthrin CAS#271241-14-6As a new type of pyrethroid hygienic insecticide, cypermethrin has a high protective effect on mosquitoes resistant to allethrin and prallethrin. The pesticide is safe for humans and does not pollute the environment. The dosage of its preparation is as low as 0.015%.Currently, cypermethrin coil mosquito coils mostly use the analysis method provided by Sumitomo Chemical Co., Ltd. of Japan, that is, GC-ECD (electron capture detector) analysis, and the pretreatment method is cumbersome.
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Products Description of Sodium trimetaphosphate CAS#7785-84-4Sodium trimetaphosphate is an inorganic compound with the chemical formula Na3(PO3)3. It is a white crystalline powder, easily soluble in water, and is mainly used as a starch modifier.Sodium trimetaphosphate Chemical PropertiesMelting point 53℃ [MER06]density 2.49storage temp. Inert atmosphere,Room Temperaturesolubility Water (Slightly)form Powdercolor WhiteSpecific Gravity2.49Water Solubility Soluble in water.
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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.
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.
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.
Collagen, (acmetea) repair factor is a macromolecular functional protein. It is the main component of the skin and accounts for 80% of the dermis of the skin. It forms a fine elastic network in the skin to firmly lock moisture and support the skin.Collagen is a high molecular functional protein. It is the main component of the skin and accounts for 80% of the dermis of the skin. It forms a fine elastic network in the skin, which firmly locks in moisture and supports the skin.
Camphor oil is one of the coloring oils used in glaze colors. Made from camphor resin. Light yellow, volatile, with a strong camphor smell. “Ceramic Color Painting”: “Use it to expand the color when painting new colors, it is easy to develop the oil, the brush is loose, and it dries quickly after painting. Pastel is rarely used, only used for freehand color expansion. Sometimes It is also used to develop dry pens, or to wipe off the residue that has consolidated in the dish, or to wipe off the dried waste line on the screen.
Breaking News: Innovative Advancement in Sodium Sulfur BatteriesResearchers at Osaka Metropolitan University have achieved a significant breakthrough in the development of all-solid-state sodium batteries, a promising alternative to lithium-ion batteries for next-generation energy storage systems.
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.
Insights into the Global Dimethyldisulfide (CAS#624-92-0) MarketIn the dynamic world of chemical manufacturing, Dimethyldisulfide (DMDS), with the CAS number 624-92-0, stands out as a critical compound with a variety of applications across different industries.
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.
Potassium carbonate (K2CO3), as a common inorganic compound, has been widely studied and utilized since ancient times due to its unique chemical properties and versatile applications. From its natural formation to its myriad uses in modern industry, the story of potassium carbonate mirrors the progress of chemistry and the advancement of human civilization.Through the exploration of potassium carbonate, we can gain a better understanding of the substance itself and discern the multifaceted role of chemicals in modern society.
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