Polymethylene polyphenyl polyisocyanate-manufacture,factory,supplier from China

(Total 24 Products for Polymethylene polyphenyl polyisocyanate)
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 BIS(2-METHOXYETHOXY)METHANE CAS#4431-83-8The molecular formula of bis(2-methoxyethoxy)methane is C7H16O4 and its molecular weight is 164.1995.BIS(2-METHOXYETHOXY)METHANE Chemical PropertiesBoiling point 60°C 1,5mmdensity 0,995 g/cm3vapor pressure 22Pa at 25℃refractive index 1.4140Fp 60°C/1.5mmform liquidcolor ColourlessWater Solubility Fully miscible in water.BRN 1700087LogP-0.69 at 22℃EPA Substance Registry System2,5,7,10-Tetraoxaundecane (4431-83-8)Safety InformationSafety Statements 24/25HS Code 2909199090Pr
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Dichloroethane CAS#1300-21-6Chemical Properties:Dichloroethane is a colorless and transparent oily liquid with a chloroform-like odor and a sweet taste. It is very easy soluble in water, miscible with ethanol, chloroform and ether,it also can dissolve oil and grease, grease, paraffin. It is mainly used as a solvent.Application:Dichloroethane can be used as a standard reagent for chromatography; it is also used as a solvent for resins, rubber, cellulose acetate, cellulose esters, paints and polymers such as polystyrene; it is also used as a raw material for organic synthesis.
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Products Description of 1,2-Bis(2-chloroethoxy)ethane CAS#112-26-51,2-Bis(2-chloroethoxy)ethane is a transparent to slightly yellow liquid at room temperature and pressure, and is insoluble in water. It is often used as a material chemical intermediate and a reaction solvent in organic chemical reactions.
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Products Description of 1-Bromo-3,5-dimethoxybenzene CAS#20469-65-21-Bromo-3,5-dimethoxybenzene is an organic intermediate that can be prepared from 3,5-dimethoxyaniline by diazotization.
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Products Description of 6-Bromo-2,3-dihydro-4H-chromen-4-one CAS#49660-57-34-Dihydrochromone is a class of natural compounds with excellent biological activity.
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Products Description of 6-Bromo-2-Methylquinoline CAS#877-42-96-Bromo-2-methylquinoline is an organic chemical pharmaceutical intermediate. 6-Bromo-2-Methylquinoline CAS#877-42-9 Chemical PropertiesMelting point 101-105 °C (lit.)Boiling point 299.7±20.0 °C(Predicted)density 1.488±0.06 g/cm3(Predicted)storage temp. Sealed in dry,Room Temperaturesolubility Methanol[soluble in]solubility soluble in Methanolpka5.02±0.43(Predicted)form solidcolor GreyInChIKeySQRYQSKJZVQJAY-UHFFFAOYSA-NCAS DataBase Reference877-42-9(CAS DataBase Reference)NIST C
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Products Description of DL-Limonene CAS#138-86-3Dipentene is a colorless, flammable liquid at room temperature with a pleasant lemon scent.
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Products Description of 2-Deoxy-D-glucose CAS#154-17-62-Deoxy-D-glucose is an anti-metabolite of D-glucose. It has the effects of interfering with the synthesis of virus-specific glycoproteins, inhibiting the proliferation of herpes simplex virus, RAN and DNA enveloped viruses, and cancer cells. At present, antiviral and anticancer drugs prepared from 2-deoxy-D-glucose have been clinically used in the treatment of herpes simplex virus and cancer, and medical health products and anti-aging cosmetics prepared from 2-deoxy-D-glucose have also been launched on the market.
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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 1,7-DihydroxynaphthaleneCAS#575-38-2 1,7-Dihydroxynaphthalene Chemical PropertiesMelting point 180-184 °C (lit.)Boiling point 246.06°C (rough estimate)density 1.0924 (rough estimate)refractive index 1.5418 (estimate)Fp 252 °Cstorage temp. Sealed in dry,Room Temperaturesolubility DMSO (Slightly), Methanol (Slightly)pka9.58±0.40(Predicted)form Solidcolor Beige to Dark BrownWater Solubility Slightly soluble in water.λmax335nm(Cyclohexane)(lit.)BRN 1908499CAS DataBase Reference575-38-2(CAS DataBase Reference)N
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Products Description of 2'-Fucosyllactose CAS#41263-94-9 BASF’s Newtrition® brand for human nutrition launched 2’-fucosyllactose (2’-FL), the largest human milk oligosaccharide (HMO) product, to the infant nutrition market in early 2019. HMOs are a unique class of carbohydrates that occur naturally in breast milk and are the second most abundant nutrient in breast milk after fat and lactose.2’-fucosyllactose is produced by microbial fermentation of genetically modified Escherichia coli strains.
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Products Description of Dimethyl-Amino Propyl-Amine CAS#109-55-7N,N-dimethyl-1,3-diaminopropane is an organic compound with the molecular formula C₅H₁₄N₂3-Dimethylaminopropylamine Chemical PropertiesMelting point -60 °CBoiling point 133 °C(lit.)density 0.812 g/mL at 25 °C(lit.)vapor density 3.6 (vs air)vapor pressure 5 mm Hg ( 20 °C)refractive index n20/D 1.435(lit.)Fp 90 °Fstorage temp. Store below +30°C.form Liquidpka10.13±0.10(Predicted)color ClearOdorammoniacal odorPH12.7 (100g/l, H2O, 20℃)explosive limit2
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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 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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2-Methyl-1-propanol CAS#78-83-1Isobutanol, additionally recognised as isopropyl alcohol or 2-methyl propanol, is a colorless and flammable liquid. It is one of the most important components of clean tea leaves, black tea and inexperienced tea to produce the top notch aroma. The molecular weight of isobutanol is 74.12, with a boiling factor of 107.66 ℃, a relative density of 0.8016, a refractive index of 1.3959, and a flash factor of 37 ℃.
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Products Description of 2-MERCAPTO-5-METHOXYBENZIMIDAZOLE CAS#37052-78-12-Mercapto-5-methoxybenzimidazole is a light beige solid powder at room temperature and pressure. It is insoluble in water and low-polarity organic solvents, but soluble in strong polarity organic solvents. It can be used as an intermediate in organic synthesis and pharmaceutical chemistry, and has a wide range of applications in pharmaceutical industry production.
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Products Description of PHOSPHORIC ACID CAS#78-42-2PHOSPHORIC ACID is widely used as a flame retardant, plasticizer, and extraction agent in the production of chemical companies. Its most important use is the production of hydrogen peroxide.
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Products Description of Chlorobutanol CAS#57-15-8Colorless crystals. There are two types of crystals: containing half molecular crystal water and anhydrous. The melting point of the containing half molecular crystal water type is 78℃, slightly soluble in water (1:250), easily soluble in ethanol (1:1), glycerol (1:10), ether, chloroform and volatile oil. The melting point of the anhydrous type is 97℃, the boiling point is 167℃, and the 135℃ (32.7kPa).
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Products Description of 2-Butanol CAS#78-92-2Sec-butanol is also called 2-butanol and methylethylmethanol, with the chemical formula CH3CH2CHOHCH3. Molecular weight 74.12. Colorless liquid with strong mint Chemicalbook aroma, flammable. Volatile. Optically active.
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Products Description of 4'-Chloroacetophenone CAS#99-91-2Chloroacetophenone is an organic compound with the molecular formula C8H7ClO. It is a white liquid at room temperature. Insoluble in water, soluble in organic solvents.
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Cyclohexanol CAS#108-93-0Cyclohexanol is a clear, colorless to light yellow, viscous, hygroscopic liquid with a camphor-like odor. A detection smell threshold awareness of sixty four μg/m3 (155 ppbv) was once said through Punter (1983). It has a pretty excessive flash factor and boiling range. A solvent for cellulose ethers, ester gum,shellac, low viscosity silicones and polyvinyl chloride. lt has a pretty confined use in display screen inks.
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Calcium beta-hydroxy-beta-methylbutyrate Chemical PropertiesMelting point >215°C (dec.)storage temp. Inert atmosphere,Room Temperaturesolubility Water (Slightly)form Powdercolor WhiteWater Solubility Soluble in water.Stability:HygroscopicInChIInChI=1S/C5H10O3.Ca.2H/c1-5(2,8)3-4(6)7;;;/h8H,3H2,1-2H3,(H,6,7);;;InChIKeyWLJUMPWVUPNXMF-UHFFFAOYSA-LSMILESC(C(=O)O)C(O)(C)C.[Ca]CAS DataBase Reference135236-72-5(CAS DataBase Reference)Safety InformationHS Code 2920907090Product Application of Calcium beta-hydroxy-beta-methylbutyrate CAS#135236-72-5Used as phar
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Products Description of Sulfanilic acid CAS#121-57-3White or off-white crystal. Hydrates lose water at 100°C, and anhydrous substances begin to decompose and carbonize at 280°C. Relative density 1.485 (25/4).
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Urotropine, also known as hexamethylenetetramine, is a polycyclic heterocyclic compound with similar structure to adamantane, and the molecular formula is c6h12n4. Urotropine is a white crystal, which can be prepared by the reaction of formaldehyde and ammonia. The molecule contains four mutually fused triazane rings. It is limited soluble in water and easily soluble in most organic solvents.Urotropine is widely used. It can be used as raw materials for organic synthesis, analytical chemical reagents, antibiotics and fuels, and also has many uses in chemical production.
Sorbitol has a chemical formula of C6H14O6 and also has 2 optical isomers, D as well as L. It is the main photosynthetic item of Rosaceae plants and also is primarily made use of as a sugar. It has a trendy pleasant taste as well as a sweet taste of regarding Fifty percent of sucrose, calorific worth is similar to sucrose.What is Sorbitol?Sorbitol has a great wonderful taste, as well as its sweet taste is about 50% -70% of that of sucrose. 1g of sorbitol creates 16.7 kJ of heat in the human body.
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.
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.
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.
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.
Groundbreaking Advancement in Phosphoric Acid Production TechnologyThe global phosphoric acid market is witnessing a significant transformation with the introduction of innovative production technologies that enhance efficiency and sustainability. According to a recent report by Grand View Research, the market size was valued at USD 41.26 billion in 2022 and is projected to grow at a CAGR of 4.2% from 2023 to 2040 .This growth is attributed to the increasing demand for phosphate fertilizers, which are crucial for the agricultural industry.
Tannic acid belongs to hydrolyzed tannins, which can be hydrolyzed to acid and glucose. It is one of the earliest studied tannins and has strong biological and pharmacological activities. Tannic acid is mainly rich in plants such as Chinese five seeds, Turkish seeds, tara pods, pomegranates, sumac leaves, sumac, and witch hazel trees.
lycopene: dark red powder, has the unique smell and taste of lycopene.Lycopene (CAS No.: 502-65-8), dark red powder, has the unique smell and taste of lycopene. The lycopene produced by microbial fermentation mainly uses fermented substrates such as corn steep liquor, soybean meal and starch as the medium, and uses Blake Sleatrispora as the strain. After fermentation, filtration, drying, extraction, crystallization and Manufactured by refining and other processes.The main functions of lycopene are as follows:1. Anti-oxidation, delay aging;2. Improve the body’s immunity;3.
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. .
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