China Largest Manufacturer factory sales DL-ALPHA-TOCOPHEROL /VITAMIN E CAS 10191-41-0 CAS NO.10191-41-0

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DL-α-Tocopherol Basic information Product Name: DL-α-Tocopherol Synonyms: ALL-RAC-ALPHA-TOCOPHEROL;(+/-)-ALPHA-TOCOPHEROL;(+/-)-ALPHA-TOCOFEROL;ALPHA-TOCOPHEROLUM;ALPHA-DL-TOCOPHEROL;5,7,8-TRIMETHYLTOCOL;A-TOCOPHEROL;IRGANOX E 201 CAS: 10191-41-0 MF: C29H50O2 MW: 430.71 EINECS: 233-466-0 Product Categories: Other APIs;Antioxidant;Organics;Biochemistry;Vitamins Mol File: 10191-41-0.mol   DL-α-Tocopherol Chemical Properties Melting point  2-4°C alpha  [α]D20 - 0.02 - +0.02゜ (neat) Boiling point  200-220°C 0,1mm density  0.950 g/mL at 20 °C(lit.) refractive index  n20/D 1.506 Fp  240°C storage temp.  2-8°C solubility  H2O: insoluble pka 11.40±0.40(Predicted) form  Pale yellow oil color  Colourless to Dark Yellow to Thick Water Solubility  Miscible with chloroform, vegetable oils, ether, acetone and alcohol. Immiscible with water. Sensitive  Light Sensitive Merck  14,9495 BRN  94012 InChIKey GVJHHUAWPYXKBD-IEOSBIPESA-N CAS DataBase Reference 10191-41-0(CAS DataBase Reference) EPA Substance Registry System 2H-1-Benzopyran-6-ol, 3,4-dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)- (10191-41-0)   Safety Information Hazard Codes  Xi,T,F Risk Statements  36/37/38-39/23/24/25-23/24/25-11 Safety Statements  26-37/39-45-36/37-16-7 RIDADR  UN1230 - class 3 - PG 2 - Methanol, solution WGK Germany  1 RTECS  GA8746000 F  8-10-23 TSCA  Yes HS Code  29362800 Hazardous Substances Data 10191-41-0(Hazardous Substances Data) MSDS Information Provider Language ALFA English   DL-α-Tocopherol Usage And Synthesis Chemical Properties 1mg = 1.1 IU Chemical Properties Alpha tocopherol is a natural product. The PhEur 6.0 describes alpha-tocopherol as a clear, colorless or yellowish-brown, viscous, oily liquid. Uses dl-α-Tocopherol is the racemic analog of α-Tocopherol (T526125), the most bioactive of the naturally occurring forms of Vitamin E. Richest sources are green vegetables, grains, and oils, particularly palm, safflower and sunflower oils. dl-α-Tocopherol is an antioxidant that protects cell membrane lipids from oxidative damage. Uses DL-α-Tocopherol is used as an antioxidant that protects cell membrane lipids from oxidative damage. Uses These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements. Production Methods Naturally occurring tocopherols are obtained by the extraction or molecular distillation of steam distillates of vegetable oils; for example, alpha tocopherol occurs in concentrations of 0.1–0.3% in corn, rapeseed, soybean, sunflower, and wheat germ oils.Beta and gamma tocopherol are usually found in natural sources along with alpha tocopherol. Racemic synthetic tocopherols may be prepared by the condensation of the appropriate methylated hydroquinone with racemic isophytol. General Description TGF-β3 (transforming growth factor-β3) belongs to the TGF β superfamily. The TGFβ3 gene is mapped to human chromosome 14q24.3 Pharmaceutical Applications Alpha tocopherol is primarily recognized as a source of vitamin E, and the commercially available materials and specifications reflect this purpose. While alpha tocopherol also exhibits antioxidant properties, the beta, delta, and gamma tocopherols are considered to be more effective as antioxidants. Alpha-tocopherol is a highly lipophilic compound, and is an excellent solvent for many poorly soluble drugs.Of widespread regulatory acceptability, tocopherols are of value in oil- or fat-based pharmaceutical products and are normally used in the concentration range 0.001–0.05% v/v. There is frequently an optimum concentration; thus the autoxidation of linoleic acid and methyl linolenate is reduced at low concentrations of alpha tocopherol, and is accelerated by higher concentrations. Antioxidant effectiveness can be increased by the addition of oil-soluble synergists such as lecithin and ascorbyl palmitate. Alpha tocopherol may be used as an efficient plasticizer. It has been used in the development of deformable liposomes as topical formulations. d-Alpha-tocopherol has also been used as a non-ionic surfactant in oral and injectable formulations. Biochem/physiol Actions TGF-β3 (transforming growth factor-β3) regulates lymphocyte proliferation, apoptosis, hematopoiesis and embryogenesis to maintain immune homeostasis. TGF-β plays an important role in cell growth, differentiation, and survival. TGF-β3 specifically promotes chondrogenic differentiation.TGF-β3 is a strong growth inhibitor for normal and transformed epithelial, lymphoid, fibroblast, and keratinocyte cells. TGF-2 inhibits antitumor action of NK (natural killer) cells, T-cells, macrophages, monocytes and neutrophils. TGF-β3 is a tumor suppressor in the early stages of carcinogenesis, but in the later stages acts as a tumor promoter by inducing epithelial-mesenchymal transition and stimulating angiogenesis. TGF-β isoforms is known to participate in wound healing and tissue fibrosis. TGF-β3 is crucial for tissue restoration and scarless tissue repair. Mutation in the TGFβ3 gene is associated with development of non-syndromic cleft palate only (NS CPO), a rare congenital disease. Safety Tocopherols (vitamin E) occur in many food substances that are consumed as part of the normal diet. The daily nutritional requirement has not been clearly defined but is estimated to be 3.0–20.0 mg. Absorption from the gastrointestinal tract is dependent upon normal pancreatic function and the presence of bile. Tocopherols are widely distributed throughout the body, with some ingested tocopherol metabolized in the liver; excretion of metabolites is via the urine or bile. Individuals with vitamin E deficiency are usually treated by oral administration of tocopherols, although intramuscular and intravenous administration may sometimes be used. Tocopherols are well tolerated, although excessive oral intake may cause headache, fatigue, weakness, digestive disturbance, and nausea. Prolonged and intensive skin contact may lead to erythema and contact dermatitis. The use of tocopherols as antioxidants in pharmaceuticals and food products is unlikely to pose any hazard to human health since the daily intake from such uses is small compared with the intake of naturally occurring tocopherols in the diet. The WHO has set an acceptable daily intake of tocopherol used as an antioxidant at 0.15–2.0 mg/kg body-weight. storage Tocopherols are oxidized slowly by atmospheric oxygen and rapidly by ferric and silver salts. Oxidation products include tocopheroxide, tocopherylquinone, and tocopherylhydroquinone, as well as dimers and trimers. Tocopherol esters are more stable to oxidation than the free tocopherols but are in consequence less effective antioxidants. Tocopherols should be stored under an inert gas, in an airtight container in a cool, dry place and protected from light. Purification Methods Dissolve dl--tocopherol in anhydrous MeOH (15mL/g) cool to -6o for 1hour, then chill in a Dry-ice/acetone bath; crystallisation is induced by scratching with a glass rod. The dl--acetate [52225-20-4] (see DL-vitamin E actetate below) is a viscous yellow liquid with m -7o, b 184o/0.01mm, 224o/0.3mm, d 4 20 0.953, n D 20 1.496. It is used as a standard for Vitamin E activity where the unit of activity is attained with 1mg of pure dl--acetate. [Friedrich “Vitamins” Water de Guyter Publ, Berlin 1988, Beilstein 17/4 V 168.] Incompatibilities Tocopherols are incompatible with peroxides and metal ions, especially iron, copper, and silver. Tocopherols may be absorbed into plastic. Regulatory Status GRAS listed. Accepted in Europe as a food additive. Included in the FDA Inactive Ingredients Database (IV injections, powder, lyophilized powder for liposomal suspension; oral capsules, tablets, and topical preparations). Included in the Canadian List of Acceptable Non-medicinal Ingredients. Included in nonparenteral medicines licensed in the UK.   DL-α-Tocopherol Preparation Products And Raw materials

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Leader Biochemical Group is a large leader incorporated industry manufacturers and suppliers of advanced refined raw materials From the year of 1996 when our factory was put into production to year of 2020, our group has successively invested in more than 52 factories with shares and subordinates.We focus on manufacture Pharm & chemicals, functional active ingredients, nutritional Ingredients, health care products, cosmetics, pharmaceutical and refined feed, oil, natural plant ingredients industries to provide top quality of GMP standards products.All the invested factories' product lines cover API and intermediates, vitamins, amino acids, plant extracts, daily chemical products, cosmetics raw materials, nutrition and health care products, food additives, feed additives, essential oil products, fine chemical products and agricultural chemical raw materials And flavors and fragrances. Especially in the field of vitamins, amino acids, pharmaceutical raw materials and cosmetic raw materials, we have more than 20 years of production and sales experience. All products meet the requirements of high international export standards and have been recognized by customers all over the world. Our manufacture basement & R&D center located in National Aerospace Economic & Technical Development Zone Xi`an Shaanxi China. Now not only relying on self-cultivation and development as well as maintains good cooperative relations with many famous research institutes and universities in China. Now, we have closely cooperation with Shanghai Institute of Organic Chemistry of Chinese Academy of Science, Beijing Institute of Material Medical of Chinese Academy of Medical Science, China Pharmaceutical University, Zhejiang University. Closely cooperation with them not only integrating Science and technology resources, but also increasing the R&D speed and improving our R&D power. Offering Powerful Tech supporting Platform for group development. Keep serve the manufacture and the market as the R&D central task, focus on the technical research.  Now there are 3 technology R & D platforms including biological extract, microorganism fermentation and chemical synthesis, and can independently research and develop kinds of difficult APIs and pharmaceutical intermediates. With the strong support of China State Institute of Pharmaceutical Industry (hereinafter short for CSIPI), earlier known as Shanghai Institute of Pharmaceutical Industry (SIPI), we have unique advantages in the R & D and industrialization of high-grade, precision and advanced products.  Now our Group technical force is abundant, existing staff more that 1000 people, senior professional and technical staff accounted for more than 50% of the total number of employees, including 15 PhD research and development personnel, 5 master′ S degree in technical and management personnel 9 people. We have advanced equipment like fermentation equipment and technology also extraction, isolation, purification, synthesis with rich production experience and strict quality control system, According to the GMP required, quickly transforming the R&D results to industrial production in time, it is our advantages and our products are exported to North and South America, Europe, Middle East, Africa, and other five continents and scale the forefront in the nation, won good international reputation.  We believe only good quality can bring good cooperation, quality is our key spirit during our production, we are warmly welcome clients and partner from all over the world contact us for everlasting cooperation, Leader will be your strong, sincere and reliable partner in China.

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DL-α-Tocopherol Basic information Product Name: DL-α-Tocopherol Synonyms: ALL-RAC-ALPHA-TOCOPHEROL;(+/-)-ALPHA-TOCOPHEROL;(+/-)-ALPHA-TOCOFEROL;ALPHA-TOCOPHEROLUM;ALPHA-DL-TOCOPHEROL;5,7,8-TRIMETHYLTOCOL;A-TOCOPHEROL;IRGANOX E 201 CAS: 10191-41-0 MF: C29H50O2 MW: 430.71 EINECS: 233-466-0 Product Categories: Other APIs;Antioxidant;Organics;Biochemistry;Vitamins Mol File: 10191-41-0.mol   DL-α-Tocopherol Chemical Properties Melting point  2-4°C alpha  [α]D20 - 0.02 - +0.02゜ (neat) Boiling point  200-220°C 0,1mm density  0.950 g/mL at 20 °C(lit.) refractive index  n20/D 1.506 Fp  240°C storage temp.  2-8°C solubility  H2O: insoluble pka 11.40±0.40(Predicted) form  Pale yellow oil color  Colourless to Dark Yellow to Thick Water Solubility  Miscible with chloroform, vegetable oils, ether, acetone and alcohol. Immiscible with water. Sensitive  Light Sensitive Merck  14,9495 BRN  94012 InChIKey GVJHHUAWPYXKBD-IEOSBIPESA-N CAS DataBase Reference 10191-41-0(CAS DataBase Reference) EPA Substance Registry System 2H-1-Benzopyran-6-ol, 3,4-dihydro-2,5,7,8-tetramethyl-2-(4,8,12-trimethyltridecyl)- (10191-41-0)   Safety Information Hazard Codes  Xi,T,F Risk Statements  36/37/38-39/23/24/25-23/24/25-11 Safety Statements  26-37/39-45-36/37-16-7 RIDADR  UN1230 - class 3 - PG 2 - Methanol, solution WGK Germany  1 RTECS  GA8746000 F  8-10-23 TSCA  Yes HS Code  29362800 Hazardous Substances Data 10191-41-0(Hazardous Substances Data) MSDS Information Provider Language ALFA English   DL-α-Tocopherol Usage And Synthesis Chemical Properties 1mg = 1.1 IU Chemical Properties Alpha tocopherol is a natural product. The PhEur 6.0 describes alpha-tocopherol as a clear, colorless or yellowish-brown, viscous, oily liquid. Uses dl-α-Tocopherol is the racemic analog of α-Tocopherol (T526125), the most bioactive of the naturally occurring forms of Vitamin E. Richest sources are green vegetables, grains, and oils, particularly palm, safflower and sunflower oils. dl-α-Tocopherol is an antioxidant that protects cell membrane lipids from oxidative damage. Uses DL-α-Tocopherol is used as an antioxidant that protects cell membrane lipids from oxidative damage. Uses These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements. Production Methods Naturally occurring tocopherols are obtained by the extraction or molecular distillation of steam distillates of vegetable oils; for example, alpha tocopherol occurs in concentrations of 0.1–0.3% in corn, rapeseed, soybean, sunflower, and wheat germ oils.Beta and gamma tocopherol are usually found in natural sources along with alpha tocopherol. Racemic synthetic tocopherols may be prepared by the condensation of the appropriate methylated hydroquinone with racemic isophytol. General Description TGF-β3 (transforming growth factor-β3) belongs to the TGF β superfamily. The TGFβ3 gene is mapped to human chromosome 14q24.3 Pharmaceutical Applications Alpha tocopherol is primarily recognized as a source of vitamin E, and the commercially available materials and specifications reflect this purpose. While alpha tocopherol also exhibits antioxidant properties, the beta, delta, and gamma tocopherols are considered to be more effective as antioxidants. Alpha-tocopherol is a highly lipophilic compound, and is an excellent solvent for many poorly soluble drugs.Of widespread regulatory acceptability, tocopherols are of value in oil- or fat-based pharmaceutical products and are normally used in the concentration range 0.001–0.05% v/v. There is frequently an optimum concentration; thus the autoxidation of linoleic acid and methyl linolenate is reduced at low concentrations of alpha tocopherol, and is accelerated by higher concentrations. Antioxidant effectiveness can be increased by the addition of oil-soluble synergists such as lecithin and ascorbyl palmitate. Alpha tocopherol may be used as an efficient plasticizer. It has been used in the development of deformable liposomes as topical formulations. d-Alpha-tocopherol has also been used as a non-ionic surfactant in oral and injectable formulations. Biochem/physiol Actions TGF-β3 (transforming growth factor-β3) regulates lymphocyte proliferation, apoptosis, hematopoiesis and embryogenesis to maintain immune homeostasis. TGF-β plays an important role in cell growth, differentiation, and survival. TGF-β3 specifically promotes chondrogenic differentiation.TGF-β3 is a strong growth inhibitor for normal and transformed epithelial, lymphoid, fibroblast, and keratinocyte cells. TGF-2 inhibits antitumor action of NK (natural killer) cells, T-cells, macrophages, monocytes and neutrophils. TGF-β3 is a tumor suppressor in the early stages of carcinogenesis, but in the later stages acts as a tumor promoter by inducing epithelial-mesenchymal transition and stimulating angiogenesis. TGF-β isoforms is known to participate in wound healing and tissue fibrosis. TGF-β3 is crucial for tissue restoration and scarless tissue repair. Mutation in the TGFβ3 gene is associated with development of non-syndromic cleft palate only (NS CPO), a rare congenital disease. Safety Tocopherols (vitamin E) occur in many food substances that are consumed as part of the normal diet. The daily nutritional requirement has not been clearly defined but is estimated to be 3.0–20.0 mg. Absorption from the gastrointestinal tract is dependent upon normal pancreatic function and the presence of bile. Tocopherols are widely distributed throughout the body, with some ingested tocopherol metabolized in the liver; excretion of metabolites is via the urine or bile. Individuals with vitamin E deficiency are usually treated by oral administration of tocopherols, although intramuscular and intravenous administration may sometimes be used. Tocopherols are well tolerated, although excessive oral intake may cause headache, fatigue, weakness, digestive disturbance, and nausea. Prolonged and intensive skin contact may lead to erythema and contact dermatitis. The use of tocopherols as antioxidants in pharmaceuticals and food products is unlikely to pose any hazard to human health since the daily intake from such uses is small compared with the intake of naturally occurring tocopherols in the diet. The WHO has set an acceptable daily intake of tocopherol used as an antioxidant at 0.15–2.0 mg/kg body-weight. storage Tocopherols are oxidized slowly by atmospheric oxygen and rapidly by ferric and silver salts. Oxidation products include tocopheroxide, tocopherylquinone, and tocopherylhydroquinone, as well as dimers and trimers. Tocopherol esters are more stable to oxidation than the free tocopherols but are in consequence less effective antioxidants. Tocopherols should be stored under an inert gas, in an airtight container in a cool, dry place and protected from light. Purification Methods Dissolve dl--tocopherol in anhydrous MeOH (15mL/g) cool to -6o for 1hour, then chill in a Dry-ice/acetone bath; crystallisation is induced by scratching with a glass rod. The dl--acetate [52225-20-4] (see DL-vitamin E actetate below) is a viscous yellow liquid with m -7o, b 184o/0.01mm, 224o/0.3mm, d 4 20 0.953, n D 20 1.496. It is used as a standard for Vitamin E activity where the unit of activity is attained with 1mg of pure dl--acetate. [Friedrich “Vitamins” Water de Guyter Publ, Berlin 1988, Beilstein 17/4 V 168.] Incompatibilities Tocopherols are incompatible with peroxides and metal ions, especially iron, copper, and silver. Tocopherols may be absorbed into plastic. Regulatory Status GRAS listed. Accepted in Europe as a food additive. Included in the FDA Inactive Ingredients Database (IV injections, powder, lyophilized powder for liposomal suspension; oral capsules, tablets, and topical preparations). Included in the Canadian List of Acceptable Non-medicinal Ingredients. Included in nonparenteral medicines licensed in the UK.   DL-α-Tocopherol Preparation Products And Raw materials