B-amin-manufacture,factory,supplier from China

Chinese name: 1-[[2-(4-chlorophenyl)ethyl]amino]-2-chloropropane hydrochloride Chinese synonymous with green casserin intermediate; Lorcaserin intermediate 2; Lorcaserin Impurity B; 1-[[2-(4-chlorophenyl)ethyl]amino]-2-chloropropane hydrochloride; Lorcaserin hydrochloride intermediate 2; 2-Chloro-N-(4-chlorophenethyl)propan-1-amine chloride; Lorcaserin impurity B (EP); Chlorocasein Impurity B English name 1-[[2-(4-Chlorophenyl)ethyl]amino]-2-chloropropane English synonym 1-[[2-(4-Chlorophenyl)ethyl]amino]-2-chloropropane; 1-[[2-(4-Chlorophenyl)ethyl]amino]-2-chloropropaneHydrochloride; Benzene

Chinese name: 1-[[2-(4-chlorophenyl)ethyl]amino]-2-chloropropane hydrochloride Chinese synonymous with inexperienced casserin intermediate; Lorcaserin intermediate 2; Lorcaserin Impurity B; 1-[[2-(4-chlorophenyl)ethyl]amino]-2-chloropropane hydrochloride; Lorcaserin hydrochloride intermediate 2; 2-Chloro-N-(4-chlorophenethyl)propan-1-amine chloride; Lorcaserin impurity B (EP); Chlorocasein Impurity B English title 1-[[2-(4-Chlorophenyl)ethyl]amino]-2-chloropropane English synonym 1-[[2-(4-Chlorophenyl)ethyl]amino]-2-chloropropane; 1-[[2-(4-Chlorophenyl)ethyl]amino]-2-chloro

Chinese Name: 2-[(6-chloro-3,4-dihydro-3-methyl-2,4-dioxo-1(2H)-pyrimidine]methyl]butyronitrileEnglish name 2-((6-Chloro-3-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)benzonitrileChinese alias alogliptin-B | 2-[(6-Chloro-3,4-dihydro-3-methyl-2,4-dioxo-1(2H)-pyrimidinyl)methyl]benzonitrile | Alogliptin intermediate | Alogliptin benzoate intermediate 1English aliases more Physicochemical propertiesDensity 1.4±0.1 g/cm3boiling point 418.0±55.0 °C at 760 mmHgMolecular formula C13H10ClN3O2Molecular Weight: 275.690flash point 206.6±31.5 °CExact Mass 275.046143PSA67.79000LogP1.95Vapour

Chinese Name: 2-[(6-chloro-3,4-dihydro-3-methyl-2,4-dioxo-1(2H)-pyrimidine]methyl]butyronitrileEnglish title 2-((6-Chloro-3-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)benzonitrileChinese alias alogliptin-B | 2-[(6-Chloro-3,4-dihydro-3-methyl-2,4-dioxo-1(2H)-pyrimidinyl)methyl]benzonitrile | Alogliptin intermediate | Alogliptin benzoate intermediate 1English aliases morePhysicochemical propertiesDensity 1.4±0.1 g/cm3boiling factor 418.0±55.0 °C at 760 mmHgMolecular formulation C13H10ClN3O2Molecular Weight: 275.690flash factor 206.6±31.5 °CExact

Chinese name PiracetamForeign name PiracetamAlso known as 2-oxo-1-pyrrolidine acetamideChemical formula C6H10N2O2Molecular weight 142.156CAS 7491-74-9EINECS registration number 231-312-7Melting point 151 to 152 °CBoiling point 337.3 °cWater soluble and solubleDensity 1.239 g/cm³Appearance white crystalline powderFlash point 157.8 °cSecurity Description S26; S37/39Hazard symbol XiHazard description R36/37/38sourceThis product is 2-oxo-1-pyrrolidinyl acetamide, calculated as dry product, the C6H10N2O2 content should be 98.0% ~ 102.0%.CharactersThis product is white or off-white crystalline powde

Alprazolam, is an organic compound with the formula C17H13ClN4, mainly used for the treatment of anxiety, depression, insomnia, can be used as an anti-panic drug, but also can relieve acute alcohol withdrawal symptoms, can also have a good therapeutic effect on drug-induced intractable hiccups.Pharmacological actionThis product is a new BDZ class drug, with similar pharmacological effects as diazepam, with anxiolytic, antidepressant, sedative, hypnotic, anticonvulsant and muscle relaxant effects.

Purpose 1Biochemical studies, adrenocorticosteroid drugs.Purpose 2Glucocorticoids have four major effects: anti-inflammatory, anti-allergic, anti-toxin, and anti-shock.Purpose 3The adrenal cortex secretes the main glucocorticoid, which has three times the anti-inflammatory power of corticosterone.Refer to quality standardsThe content is 96%-104%, mp212-220°C, the specific rotation [α] 20D+161°-+169°, the absorbance coefficient (A) is 428-450, and the content of impurities such as loss on drying and burning residue is detected.

An natural compound, colorless obvious liquid with a relative density of 0.971, soluble in natural solvents such as alcohols, ethers and ethyl acetate.

Chemical and physical properties of benzophenone hydrazoneDensity 1.1±0.1 g/cm3Boiling point 328.0±11.0 °C at 760 mmHgmelting point 95-98 °C(lit.)Molecular Formula C13H12N2Molecular weight 196.248Flash point 152.1±19.3 °CExact mass 196.100052PSA 38.38000LogP 2.79Appearance: White crystalline powderVapor pressure 0.0±0.7 mmHg at 25°CThe refractive index is 1.584Storage conditionsProtect from light, cool and dry place, sealed and storedstability Stable at room temperature and pressure, white crystalline powder.Molecular Molecular property data:1. Molar refractive index: 62.322.

Titanium dioxide, is an inorganic compound, chemical formula TiO2, is a white solid or powder amphoteric oxide, molecular weight 79.866, non-toxic, the best opacity, the best whiteness and brightness, is considered to be the best performance white pigment in the world today. Titanium white has strong adhesion, is not easy to chemically change, and is always snow-white. Widely used in coatings, plastics, papermaking, printing inks, chemical fiber, rubber, cosmetics and other industries.

1.3-Butanediol is an natural compound with a molecular formulation of C4H10O2, by and large used in the instruction of polyester resin, polyurethane resin, plasticizer, etc., and additionally used as a humidifier and softener for textiles, paper and tobacco.Chinese Name: 1,3-ButanediolChinese aliases: 1,3-Dihydroxybutane; (±)-1,3-ButanediolEnglish alias: Butanediol; butane-1,3-diol; (3S)-butane-1,3-diol; (3R)-butane-1,3-diolCAS:107-88-0EINECS:203-529-7FEMA registration number: 2842Physical and chemical indicatorsAppearance: colorless, viscous l

Pharmacology and toxicologyThis product is an amide local anesthetic. After blood absorption or intravenous administration, it has obvious excitation and inhibition biphasic effect on the central nervous system, and there can be no precursor excitement, when the blood concentration is low, analgesia and drowsiness, and the pain threshold is increased; With the increase of dose, the effect or toxicity increases, and there is an anticonvulsant effect at the concentration of subtoxic blood drugs; When the blood concentration exceeds 5 mg·mL-1, convulsions can occur.

Pharmacological actionSince the discovery that long-acting local anesthetics can induce cardiac arrest, people have been looking for safer alternatives with less fat solubility. Ropivacaine is such a new long-acting amide local anesthetic, which has a long duration of action and has anesthetic and analgesic effects. Its pharmacological characteristics are low cardiotoxicity, sensory block and motor block are clearly separated, and it has peripheral vasoconstriction effect.

Cyclohexanone is an organic compound with the formula C6H10O , a saturated cyclic ketone with carbonyl carbon atoms included in a six-membered ring. Colorless transparent liquid with earthy smell, with mint smell when containing trace amounts of phenol. Impurities are light yellow, which develop color with the formation of impurities during storage time, and are water-white to gray-yellow, with a strong pungent odor. Mixed with air, the explosive pole is the same as open-chain saturated ketone.

Pharmacology and toxicologyWhen the plasma concentration exceeds 5 μg·mL-1, convulsions can occur, and at low doses, it can promote the outflow of K+ in myocardial cells, reduce the auto-discipline of the myocardium, and have anti-ventricular arrhythmic effect; At therapeutic doses, there is no significant effect on the electrical activity of cardiomyocytes, atrioventricular conduction and contraction of myocardium; Further increase in blood concentration can cause slowing of cardiac conduction velocity, atrioventricular block, inhibition of myocardial contractility and decrease of cardiac out

Chinese name: citric acidChinese synonyms citric acid / citric acid; Citric anhydride; Citrate, anhydrous; Citric acid standards; Citric acid, ACS grade; Citric acid anhydrous, water-contained; Citric acid, anhydrous, ACS grade; Anhydrous citric acid standardEnglish name CitricacidEnglish synonyms BETZ6251; BETZ0623; BORICACID-POTASSIUMCHLORIDE-SODIUMHYDROXIDEBUFFER; BUFFERCONCENTRATE,PH7.00; BUFFERCONCENTRATE,PH8.00; BUFFERCONCENTRATE,PH9.00; BUFFERCONCENTRATE,PHOSPHATE/SODIUMHYDROXIDE; BUFFERCONCENTRATE,POTASSIUMCHLORIDE/SODIUMHYDROXIDECAS number 77-92-9The molecular formula is C6H8O7Molecul

S-3-Hydroxytetrahydrofuran [1]English name: S-3-hydroxytetrahydrofuranChinese aliases: (S)-(+)3-hydroxy-tetrahydrofuran; (S)-(+)-3-Hydroxytetrahydrofuran; (S)-3-Hydroxytetrahydrofuran;S-3-Hydroxytetrahydrofuran; Afatinib intermediatesSYNONYMS: (S)-(+)-3-HYDROXY TETAHYDRO FURAN; (S)-(-)-3-HYDROXY TETRAHYDRO FURAN； S-(+)-3-HYDROXYTETRAHYDROFURAN； (S)-3-Hydroxyterthydrofurane； S-(+)-3-Hydroxytetrahydofuran； (2S)-2-Hydroxy-1,4-epoxybutane； (3S)-3-Hydroxytetrahydrofuran； (2S)-1,4-Epoxy-2-hydroxybutane； Afatinib intermediatesCAS：86087-23-2Molecular formula: C4H8O2Molecular weight: 88.11Assay: 98%Pro

Chinese identify thiopronin Chinese synonymous N-(2-mercaptopropionyl)-glycine; Thiopron; Tiopronin; N-(2-Mercaptopropionyl)glycine; mercaptopropionylglycine; Thiopronin impurities; (±)-N-(2-mercapto-1-oxopropyl)glycine; TIOPRONIN English identify Tiopronin English synonym A-MERCAPTOPROPIONYL GLYCINE; ALPHA-MERCAPTO PROPIONYL GLYCINE; LABOTEST-BB LT00451995; TIOPRONIN; N-(2-MERCAPTOPROPIONYL)GLYCINE; TOPRONIN; (2-Mercaptopropionamido)acetic acid; (2-Mercaptopropionyl)glycineCAS1953-02-2Molecular system C5H9NO3S molecular weight 163.19EINECS217-778-4 associate

2-Amino-3-hydroxypyridine properties, uses and production processPhysical and chemical properties 2-Amino-3-hydroxypyridine is gray-white to brown powder at room temperature and pressure, and has a certain alkalineness. It is insoluble in water, but has good solubility in alcoholic organic solvents, and can also be soluble in dimethyl sulfoxide with strong polarity. The chemical reaction 2-amino-3-hydroxypyridine structure contains a pyridine ring unit, the active hydroxyl group and amino group structure, and has good chemical reaction activity.

Method 1Its preparation methods are as follows:2,4-disulfophenol alkali melt hydrolysis method;o-chlorophenol hydrolysis;phenol direct oxidation;phenolic oxidation;O-hydroxycyclohexanone dehydroaromatization.Among them, (1) and (2) the process is complex, the three wastes are polluted, and they are gradually replaced by new processes, while methods (4) and methods (5) are being industrialized abroad.

Appearance: Yellow needle-like crystals.

Basic informationChinese name: AtecaineChinese aliases: aceclofenac impurity H; Methyl 4-methyl-3-[[1-oxo-2-(propylamino)propyl]amino]-2-thiophenecarboxylate; [1]English name: Articaine;Methyl (4-methyl-3-(2-(propylamino)propionamido)-2-thiophencarboxylat); 3-(N-propyl-2-amino-propionylamino)-2-carbomethoxy-4-methylthiophene； 4-Methyl-3-(2-(propylamino)propionamido)-2-thiophenecarboxylic acid,methyl ester； Articaina [INN-Spanish]； Carticaine;Aticaine compound is a white crystalline powder with the formula 4-methyl-3-[[1-oxo-2-(propylamino)propyl]amino]-2-thiophenecarboxylate.

Formic acid is an organic substance with the chemical formula HCOOH and a molecular weight of 46.03 , commonly known as formic acid, which is the simplest carboxylic acid. A colorless liquid with a pungent odor. Formic acid is a weak electrolyte, but its aqueous solution is weakly acidic and corrosive, which can stimulate skin blistering. It is usually found in the secretions of bees, certain ants, and caterpillars. It is an organic chemical raw material, also used as a disinfectant and preservative.Formic acid was first developed by J. J. -L.

Trifluoroacetic acid, is an organic compound with the formula C2HF3O2, mainly used as a test reagent, solvent, catalyst and for organic synthesis.useMainly used as test reagent, solvent, catalyst and for organic synthesis.First aid measuresSkin contact: Immediately remove contaminated clothing and rinse with plenty of running water for at least 15 minutes. Medical treatment.Eye contact: Immediately lift the eyelid and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Medical treatment.Inhalation: Quickly leave the scene to fresh air. Keep your airways open.