D-(-)-PANTOLACTONE-manufacture,factory,supplier from China

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.

Products Description of D-Glucal CAS#13265-84-4D-glucosene, also called D-glucosene, is a pharmaceutical intermediate that can be prepared from pentaacetyl glucose through a three-step reaction.

Products Description of 1,2-O-Isopropylidene-Alpha-D-Xylofuranose CAS#20031-21-41,2-O-isopropylidene-α-D-xylofuranose can be used to prepare 3-deoxy-1,2-O-isopropylidene-D-xylofuranose. 3-Deoxy-1,2-O-isopropylidene-D-xylofuranose is a chiral intermediate for the synthesis of atorvastatin to produce the pharmacological side chain.

Products Description of D-(-)-ERYTHROSE CAS#583-50-6D-erythrose-4-phosphate is an intermediate in the enzymatic conversion of carbohydrates.D-(-)-ERYTHROSE Chemical PropertiesMelting point <25℃Boiling point 144.07°C (rough estimate)alpha D20 +1° -14.5° (3 days, c = 11)density 1.0500 (rough estimate)refractive index 1.498storage temp. 2-8°Csolubility Methanol, Waterform syruppka12.49±0.20(Predicted)color light yellowWater Solubility Fully miscible in water.Sensitive HygroscopicMerck 14,3690BRN 1721698CAS DataBase Reference

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.

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

Products Description of D(+)-Glucose CAS#50-99-7Glucose is a six-carbon sugar containing an aldehyde group with a molecular formula of C6H12O6. It is the most important monosaccharide in living organisms. Its main function is to provide energy required for physiological activities of the body. It is known that the complete oxidation of 1 mol of glucose releases energy of 2870kJ (686kCal), accounting for 70% to 80% of the total energy required by the body.

Products Description of 5-Bromo-4-chloro-7H-pyrrolo[2,3-d]pyrimidine CAS#22276-95-5 5-Bromo-4-chloro-7H-pyrrolo[2,3-d]pyrimidine belongs to nitrogen heterocyclic.      5-Bromo-4-chloro-7H-pyrrolo[2,3-d]pyrimidine  Chemical PropertiesMelting point 221-225℃Boiling point 221.0±50.0 °C(Predicted)density 2.15±0.1 g/cm3(Predicted)storage temp. under inert gas (nitrogen or Argon) at 2-8°Cform solidpka9.43±0.20(Predicted)color YellowWater Solubility Slightly soluble in water.InChIKeyOXLMTRZWMHIZBY-UHFFFAOYSA-NCAS DataBase Refer

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.

Products Description of AGAROSE CAS#9012-36-6Agarose is a chain-like neutral polysaccharide composed of D-galactose and 3,6-endo-L-galactose.

Products Description of Maltose CAS#69-79-4Maltose is the abbreviation of maltobiose, also known as D-maltose and maltose. A disaccharide formed by connecting, condensing, and dehydrating two molecules of α-D-glucose through α-1,4 glycosidic bonds. There is also a free hemiacetal hydroxyl group in the molecule, which is a reducing sugar. Like glucose, it can make Doron's reagent and Fehling's reagent react positively.

Products Description of Flumethrin CAS#69770-45-2The industrial product is a clear brown liquid with a slight special odor. The specific density d is 1.013, and the vapor pressure is 1.33×10-8Pa (20°C). It is insoluble in water, but soluble in organic solvents such as methanol, acetone, and xylene.

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

Products Description of Meglumine CAS#6284-40-8MeglumineChoosing a suitable counter ion for a drug is particularly important for improving the solubility and bioavailability of the drug. Meglumine (N-methyl-D-glucosamine, MChemicalbookeglumine) is a counter ion widely used to improve the solubility of drugs.

Products Description of Alkylsulfonic phenyl ester CAS#91082-17-6White crystalline powderAlkylsulfonic phenyl ester Chemical Propertiesrefractive index n20/D 1.500Fp 210 °Cstorage temp. 2-8°Ccolor APHA: ≤350 Factory and Equipment ShowFast delivery timeInventory 2-3 working days New production 7-10 working days

Products Description of Iodomethane CAS#74-88-4Methyl iodide is a halogenated hydrocarbon with the molecular formula CH3I, MeI. It is a monoiodine substitute of methane. The boiling point is 42.4℃, the relative density is 2.279 (20/4℃), it is a volatile liquid with high density at room temperature, the dipole moment is 1.59D, and the refractive index is 1.5304 (20°C, D), 1.5293 (21°C, D). Methyl iodide is miscible with common organic solvents, slightly soluble in water, soluble in ethanol and ether. The pure product is colorless and has a special odor.

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.

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

Products Description of (-)-(R)-Mandelic Acid CAS#611-71-2D-mandelic acid is a polar molecule. Because it contains hydroxyl and carboxyl groups, the molecule has a certain degree of hydrophilicity. Since D-mandelic acid is a chiral molecule, its physical and chemical properties are affected by the stereostructure of its molecule. In addition, the acid-base properties of D-mandelic acid are also affected by the molecular structure.

Products Description of Carnitine CAS#541-15-1Carnitine is a type of B vitamins. Its structure resembles amino acids, so some people classify it as amino acids. Its main function is to help transport long-chain fatty acids to provide energy. This can prevent fat from accumulating in the heart, liver and skeletal muscle. Artificially synthesized carnitine has three forms: L-isomer, D-isomer and racemate, and L-carnitine has the best effect. L-carnitine is a compound with multiple physiologically active functions.

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

Products Description of Noopept CAS#157115-85-0N-(1-(phenylacetyl)-L-prolyl)glycine ethyl ester is marketed under the trade name NOOPEPT and is used to treat obesity, alcohol dependence, degeneration, or toxic injuries.Noopept Chemical PropertiesMelting point 94.0 to 98.0 °CBoiling point 547.3±50.0 °C(Predicted)density 1.202±0.06 g/cm3(Predicted)storage temp. -20°Csolubility Soluble in DMSO (up to 25 mg/ml)form powderpka13.41±0.20(Predicted)color white to beigeoptical activity[α]/D -115 to -125°, c = 0.5 in chloroform-dStability:Stable for 1 year from da

Products Description of 2,2-Dimorpholinodiethylether CAS#6425-39-42,2-Dimorpholinyl diethyl ether is a transparent liquid.2,2-Dimorpholinodiethylether Chemical PropertiesMelting point -28 °CBoiling point 309 °C (lit.)density 1.06 g/mL at 25 °C (lit.)vapor pressure 66Pa at 20℃refractive index n20/D 1.484(lit.)Fp 295 °Fstorage temp. 2-8°Csolubility Chloroform (Slightly), Ethyl Acetate (Slightly)form Oilpka6.92±0.10(Predicted)color Pale Brown to Light BrownWater Solubility 100g/L at 20℃InChIKeyZMSQJSMSLXVTKN-UHFFFAOYSA-NLogP0.5

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