Pmda-manufacture,factory,supplier from China

(Total 24 Products for Pmda)
Products Description of Pyromellitic Dianhydride CAS#89-32-7The English name of pyromellitic dianhydride is Pyromellitic Dianhydride (abbreviated as PMDA, the same below), which is mainly used to synthesize polyimide.
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Products Description of Tetramethylguanidine CAS#80-70-6Tetramethylguanidine, referred to as TMG, is a strong organic base catalyst with a wide range of uses in industry.
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Products Description of Cocamidopropyl betaine CAS#61789-40-0Cocamidopropyl betaine is a mixture, generally containing several main ingredients in different contents: decylamidopropyl betaine (abbreviated as C10), lauramidopropyl betaine (abbreviated as C12), myristamidopropyl betaine (abbreviated as C14), palmitamidopropyl betaine (abbreviated as C16), stearamidopropyl betaine (abbreviated as C18), etc.Cocamidopropyl betaine Chemical PropertiesBoiling point 104.3℃[at 101 325 Pa]vapor pressure 0Pa at 25℃storage temp. Refrigeratorsolubility Methanol (Sparingly), Water (
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Products Description of Benzalkonium Chloride CAS#63449-41-2Benzalkonium chloride is a cationic surfactant and a non-oxidizing fungicide. It has a broad spectrum and high efficiency in killing bacteria and algae. It can effectively control the reproduction of bacteria and algae and the growth of slime in water. It has good slime stripping effect and certain dispersion and penetration effects. It also has certain degreasing, deodorizing and corrosion inhibition effects.
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Products Description of Benzalkonium Chloride CAS#63449-41-2Benzalkonium chloride is a cationic surfactant and a non-oxidizing fungicide. It has a broad-spectrum and highly effective bactericidal and algaecidal ability. It can effectively control the growth of algae and slime in water, and has good slime stripping effect and certain dispersion and penetration effects. It also has certain degreasing, deodorizing and corrosion inhibition effects. Benzalkonium chloride has low toxicity, no cumulative toxicity, is easily soluble in water, and is not affected by water hardness.
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Products Description of Benzalkonium chloride CAS#63449-41-2Benzalkonium chloride is a cationic surfactant and a non-oxidizing fungicide. It has a broad spectrum and high efficiency in killing bacteria and algae. It can effectively control the reproduction of bacteria and algae and the growth of slime in water. It has good slime stripping effect and certain dispersion and penetration effects. It also has certain degreasing, deodorizing and corrosion inhibition effects.
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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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Diethylenetriaminepenta(methylene-phosphonic acid) Chemical PropertiesBoiling point 1003.3±75.0 °C(Predicted)density 1.35 (50% aq.)vapor pressure 0Pa at 25℃storage temp. Hygroscopic, -20°C Freezer, Under inert atmospheresolubility Aqueous Base (Sparingly), Waterform Oilpka0.59±0.10(Predicted)color Pale Yellow to BrownWater Solubility 500g/L at 25℃BRN 2068968InChIKeyDUYCTCQXNHFCSJ-UHFFFAOYSA-NLogP-3.4CAS DataBase Reference15827-60-8(CAS DataBase Reference)EPA Substance Registry SystemPhosphonic acid, [[(phosphonomethyl)imino]bis[2,1-ethanediylnitrilo
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Products Description of 4-Pyridazinecarboxylic Acid CAS#50681-25-94-Pyridazinecarboxylic Acid is a commonly used chemical raw material, often used as a pharmaceutical intermediate.4-Pyridazinecarboxylic Acid CAS#50681-25-9 Chemical PropertiesMelting point 244.2 °C (dec.) (lit.)Boiling point 404.2±18.0 °C(Predicted)density 1.403±0.06 g/cm3(Predicted)storage temp. Sealed in dry,Room Temperatureform powder to crystalpka3.18±0.10(Predicted)color White to Almost whiteInChIInChI=1S/C5H4N2O2/c8-5(9)4-1-2-6-7-3-4/h1-3H,(H,8,9)InChIKeyJUSIWJONLKBPDU-UHFFFAOYSA-NS
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Products Description of Tributyl phosphate CAS#126-73-8Colorless, transparent liquid with pungent odor, flash point 193℃, boiling point 289℃ (101KPa), viscosity 3.5~12.2 centipoise, refractive index 1.4226 (20℃). It is miscible with common organic solvents and slightly soluble in water. The solubility of water in this product is 7% (25℃). But it will gradually hydrolyze as the temperature rises.
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Products Description of  Tetrahydro-4H-pyran-4-one CAS#29943-42-8Tetrahydropyranone, also known as tetrahydropyran-4-one, is a chemical substance with the molecular formula C5H8O2.Tetrahydro-4H-pyran-4-one Chemical PropertiesBoiling point 166-166.5 °C (lit.)density 1.084 g/mL at 25 °C (lit.)refractive index n20/D 1.452(lit.)Fp 134 °Fstorage temp. Inert atmosphere,Room Temperatureform Liquidcolor Clear colorless to pale yellowWater Solubility MISCIBLEBRN 106463InChIKeyJMJRYTGVHCAYCT-UHFFFAOYSA-NCAS DataBase Reference29943-42-8(CAS
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Products Description of Crospovidone CAS#25249-54-1Cross-linked polyvinyl pyrrolidone (PVPP) is a cross-linked polymer that is insoluble in water, strong acids, strong bases and general organic solvents and is polymerized under specific conditions by vinyl pyrrolidone monomers.
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Products Description of 4-Chlorophenethylamine CAS#156-41-24-Chlorophenethylamine is an organic compound with the molecular formula: C8H11ClN.Chemical PropertiesBoiling point 60-65 °C0.1 mm Hg(lit.)density 1.112 g/mL at 25 °C(lit.)refractive index n20/D 1.548(lit.)Fp 223 °Fstorage temp. Store Coldpka9.72±0.10(Predicted)form Liquidcolor Clear colorless to yellowSpecific Gravity1.12BRN 508247InChIKeySRXFXCKTIGELTI-UHFFFAOYSA-NCAS DataBase Reference156-41-2(CAS DataBase Reference)Safety InformationHazard Codes Xi
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Products Description of Calcium hypochlorite CAS#7778-54-3The chemical formula of bleaching powder is CaCl2·Ca(ClO)2·2H2O. It is a white powdery substance. Its composition varies with the preparation conditions. It is generally a hydrated complex salt composed of calcium hypochlorite, calcium chloride and unreacted calcium hydroxide. Its active ingredient is calcium hypochlorite. Bleaching powder has strong oxidizing, corrosive and irritating properties. It can decompose when it comes into contact with water, ethanol or inorganic acid.
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Products Description of Chlorpropham CAS#101-21-3Chlorofen, also known as clopfen, is an organic compound with the chemical formula C10H12ClNO2. It is a light brown crystalline powder and is insoluble in water. It is a plant growth regulator and herbicide that can effectively control wheat, corn, and alfalfa.
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Products Description of Guanidine carbonate CAS#593-85-1Guanidine carbonate is a chemical substance with the chemical formula C2H10N6H2CO3 and its appearance is a white crystalline powder.Guanidine carbonate Chemical PropertiesMelting point >300 °C(lit.)density 1.25vapor pressure 0Pa at 25℃storage temp. Store below +30°C.solubility 450g/lform Crystalline Powderpka12.5[at 20 ℃]color White to almost whitePH11.7 (110g/l, H2O, 20℃)Water Solubility 450 g/L (20 ºC)BRN 3628359InChIKeyKMSRVXJGTIRNNK-UHFFFAOYSA-NLogP-1.63 at 20℃CAS DataBase Refe
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Products Description of 4-morpholinecarbaldehyde CAS#4394-85-8N-formylmorpholine (NFM) is an important organic solvent and fine chemical raw material. It is a colorless transparent liquid at room temperature. It has the chemical properties of amides.
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Products Description of Ethylamine-borontrifluorideCAS#75-23-0Boron trifluoride ethylamine is mainly used as a latent curing agent for epoxy resin.Ethylamine-borontrifluoride Chemical PropertiesMelting point 85-89 °C(lit.)Boiling point 148°C/1mmHg(lit.)density 1,38 g/cm3Fp 157°Cstorage temp. 2-8°Cform solidcolor White to Light yellowPHpH(50g/l, 25℃) : 4.0~5.6Water Solubility Reacts with water.Sensitive Moisture SensitiveBRN 3672802Exposure limitsACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3InChIInChI=1S/C2H6BF3N/c1-2-7-3(4,5)6/h7H,2H2,1H3
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Products Description of Inhibitor 701 99% CAS#2226-96-2Inhibitor 701 is a nitroxide free radical inhibitor, which is suitable for preventing the self-polymerization of olefins and unsaturated monomers during production, separation, refining, storage and transportation, and controlling and regulating the degree of polymerization of olefins and their derivatives in organic synthesis reactions2.
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Products Description of Sodium dimethyldithiocarbamate CAS#128-04-1The pure product of sodium fumarate is a scaly white crystal, which is very soluble in water. The crystals obtained by the crystallization method contain 2.5 molecules of crystal water. When heated to 115°C, 2 molecules of crystal water are lost, and at 130°C, the crystal water is completely lost. The industrial intermediate is a 15% aqueous solution, which is a light yellow or grass green transparent liquid with a relative density of 1.06 and a pH of 9 to 11.
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Sodium formate CAS#141-53-7The main purpose of sodium formate as follows:Sodium formate can be used as chemical analysis reagent, used for determination of arsenic and phosphorus, also used as a disinfectant, mordant and so on.
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Products Description of Ganciclovir sodium CAS#107910-75-8Ganciclovir sodium is an analog of 2′-deoxyguanine nucleotide that can inhibit the replication of herpes viruses. Its mechanism of action is: ganciclovir is first phosphorylated into monophosphate by a protein kinase homolog encoded by CMV (UL97 gene), and then further phosphorylated into diphosphate and triphosphate by cellular kinases. In CMV-infected cells, the level of triphosphate is 100 times higher than that in non-infected cells, indicating that this product can be preferentially phosphorylated in infected cells.
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Products Description of DecamethylcyclopentasiloxaneCAS#541-02-6Decamethylcyclopentasiloxane (cyclopentasiloxane) is a colorless, odorless, volatile liquid cyclic siloxane. It is safe and environmentally friendly and has been widely used in health and beauty products such as deodorants, antiperspirants, cosmetics, shampoos, body lotions, etc.
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Products Description of Lidocaine CAS#137-58-6Lidocaine exerts its local anesthetic effect by reversibly blocking sodium channels and blocking the transmission of action potentials on nerve fibers. Sensory nerve fibers are blocked earlier than motor nerve fibers, so low doses of lidocaine can exert selective sensory blocking effects. Lidocaine also has antiarrhythmic effects and belongs to Class Ib antiarrhythmic drugs. It can reduce ventricular rate, shorten action potential time and absolute refractory period, and prolong relative refractory period.
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Relate News
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.
1. 2024 Production and Sales OverviewBased on the latest available data, the specific global production and sales figures of caustic soda (CAS#1310 - 73 - 2) in 2024 have not been fully compiled yet. However, looking at the situation in China, which is a major player in the global caustic soda market, from January to November 2024, the production of caustic soda (in terms of 100% equivalent) reached 39.805 million tons, showing a year - on - year growth of 5.9%.
In fact, many people are familiar with glucose. This is a very helpful nutrient to the human body. It can effectively enhance the body’s immunity, improve the ability to resist viruses, maintain the balance of intestinal flora, and effectively delay skin aging. To achieve the effect of lowering cholesterol, but if excessive intake can also lead to increased blood sugar.Glucose is a kind of monosaccharide that widely exists in nature. There are many functions and functions of glucose.
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.
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%.
CAS# 618107-90-7 IntroductionThe compound 2-amino-5-iodo-pyridin-3-yl-methanol, also known as CAS# 618107-90-7, is a chemical compound that falls under the category of pyridine derivatives. Pyridine derivatives are a class of organic compounds that are widely used in the chemical industry for various applications such as pharmaceuticals, agrochemicals, and specialty chemicals.CAS# 618107-90-7 SynthesisThe synthesis of 2-amino-5-iodo-pyridin-3-yl-methanol is a multi-step process that involves several chemical reactions.
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. .
The Introduction of Zirconium Silicate PowderZirconium Silicate Powder Characteristics:Zirconium Silicate Powder has a high refractive index of 1.93-2.01 and stable chemical properties,It is a high-quality and inexpensive opacifier. It is widely used in the production of various building ceramics, sanitary ceramics, ceramics for daily use, first-class crafts and  ceramics, etc.
New Research Highlights the Dual Role of Formic Acid as a Food Preservative and Potential Inducer of Antibiotic ResistanceA recent study published in Frontiers in Microbiology has shed light on the complex effects of formic acid, a common food-grade preservative, on pathogenic bacteria. The research indicates that formic acid, which is approved by the FDA for use in the food industry due to its antimicrobial properties, may also induce a viable-but-non-culturable (VBNC) state in harmful bacteria such as Acinetobacter baumannii and Klebsiella pneumoniae.
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