Hot Sales!!!!!!!!!+China Biggest Manufacturer supply Ethyl Ascorbic Acid/3-O-Ethyl-L-ascorbic acid CAS NO.86404-04-8

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3-O-Ethyl-L-ascorbic acid Basic information Product Name: 3-O-Ethyl-L-ascorbic acid Synonyms: 3-O-Ethyl Ascorbyl Ether;3-O-Ethyl-L-ascorbic Acid;ETHYL ASCORBIC ACID;3-o-ethyl-l-ascorbic acid;3-O-ETHYLASCORBICACID;(5R,1'S)-5-(1,2-Dihydroxy-ethyl)-4-ethoxy-3-hydroxy-5H-furan-2-one;(5r)-5-[(1s)-1,2-dihydroxyethyl]-4-ethoxy-3-hydroxy-5h-furan-2-one;(R)-5-((S)-1,2-dihydroxyethyl)-4-ethoxy-3-hydroxyfuran-2(5H)-one CAS: 86404-04-8 MF: C8H12O6 MW: 204.18 EINECS: 617-849-3 Product Categories: Vitamine C derivative;API;86404-04-8 Mol File: 86404-04-8.mol   3-O-Ethyl-L-ascorbic acid Chemical Properties Melting point  112.0 to 116.0 °C Boiling point  551.5±50.0 °C(Predicted) density  1.46±0.1 g/cm3(Predicted) storage temp.  Sealed in dry,2-8°C solubility  Methanol (Slightly), Water (Slightly) pka 8.89±0.40(Predicted) form  Solid color  White to Off-White InChIKey ZGSCRDSBTNQPMS-UJURSFKZSA-N   Safety Information MSDS Information   3-O-Ethyl-L-ascorbic acid Usage And Synthesis Description 3-O-Ethyl ascorbic acid ether, also called VC ethyl ether, is an ascorbic acid derivative. Ascorbic acid is a naturally occurring antioxidant and free radical scavenger, a reducing agent in the conversion process of biological enzymes, and has a preventive effect on some chronic diseases (cancer, diabetes and allergic skin diseases). From the molecular structure of ascorbic acid, it can be seen that compared to the 2-position enol hydroxyl group, the 3-position enol hydroxyl group has higher activity on electrophiles, and it is the product of 3-O-alkylation during O-alkylation modification. Mainly. 3-O-Ethyl ascorbate ether is a product of ascorbic acid-3-O-ethylation. It has a simple molecular structure and is easily absorbed by the skin. After entering the dermis through the stratum corneum of the skin, it is easily decomposed by the biological enzymes in the human body. The effect of ascorbic acid effectively solves the fat solubility problem of ascorbic acid, and is widely used in cosmetics as a whitening agent and antioxidant. Uses Vitamin C ethyl ether (VC ethyl ether) is a lipophilic and hydrophilic amphoteric vitamin C derivative. It not only retains the redox effect of vitamin C but is also very stable. It is a non-discoloring vitamin C derivative. It is a lipophilic and chemicalbook amphoteric substance, which not only makes it extremely convenient to use in the formula, but also makes it easy to penetrate the stratum corneum into the dermis. After entering the skin, it is easily decomposed by biological enzymes to play the role of vitamin C, thereby Improve its bioavailability. Uses 3-O-Ethyl-L-ascorbic Acid could be a useful stabilizing agent for a para-hydroxyacetophenone solution. 3-O-Ethyl-L-ascorbic Acid could be a useful stabilizing agent for a para- hydroxyacetophenone solution. Mechanism of action VC ethyl ether penetrates the stratum corneum to reach the melanocytes in the basal layer, inhibits tyrosinase activity, inhibits the formation of melanin, and restores melanin to colorless, thereby effectively whitening the skin. And Chemicalbook and VC ethyl ether can directly participate in the synthesis of collagen and repair skin cell activity after entering the dermis, increasing collagen, so that the skin becomes full and elastic, making the skin delicate and smooth. Chemical Synthesis The above 3-O-ethyl-5,6-O-isopropylideneascorbic acid 40g dissolved in 200ml of ethanol. 10g of cation-exchange resin was added and was refluxed for 2 hours. The catalyst was removed by an ion exchange resin and concentrated under reduced pressure. After drying, with ethyl acetate: hexane (3: 1) crystallization. After drying, obtained 33.3g 3-O-ethylascorbic acid, yield 94%. It was recrystallized in 100mL ethyl acetate giving 30.6g, yield 87%, mp: 112-114°C.   3-O-Ethyl-L-ascorbic acid Preparation Products And Raw materials Raw materials L-Ascorbic acid, 3-O-ethyl-5,6-O-(1-methylethylidene)--->Bromoethane

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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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3-O-Ethyl-L-ascorbic acid Basic information Product Name: 3-O-Ethyl-L-ascorbic acid Synonyms: 3-O-Ethyl Ascorbyl Ether;3-O-Ethyl-L-ascorbic Acid;ETHYL ASCORBIC ACID;3-o-ethyl-l-ascorbic acid;3-O-ETHYLASCORBICACID;(5R,1'S)-5-(1,2-Dihydroxy-ethyl)-4-ethoxy-3-hydroxy-5H-furan-2-one;(5r)-5-[(1s)-1,2-dihydroxyethyl]-4-ethoxy-3-hydroxy-5h-furan-2-one;(R)-5-((S)-1,2-dihydroxyethyl)-4-ethoxy-3-hydroxyfuran-2(5H)-one CAS: 86404-04-8 MF: C8H12O6 MW: 204.18 EINECS: 617-849-3 Product Categories: Vitamine C derivative;API;86404-04-8 Mol File: 86404-04-8.mol   3-O-Ethyl-L-ascorbic acid Chemical Properties Melting point  112.0 to 116.0 °C Boiling point  551.5±50.0 °C(Predicted) density  1.46±0.1 g/cm3(Predicted) storage temp.  Sealed in dry,2-8°C solubility  Methanol (Slightly), Water (Slightly) pka 8.89±0.40(Predicted) form  Solid color  White to Off-White InChIKey ZGSCRDSBTNQPMS-UJURSFKZSA-N   Safety Information MSDS Information   3-O-Ethyl-L-ascorbic acid Usage And Synthesis Description 3-O-Ethyl ascorbic acid ether, also called VC ethyl ether, is an ascorbic acid derivative. Ascorbic acid is a naturally occurring antioxidant and free radical scavenger, a reducing agent in the conversion process of biological enzymes, and has a preventive effect on some chronic diseases (cancer, diabetes and allergic skin diseases). From the molecular structure of ascorbic acid, it can be seen that compared to the 2-position enol hydroxyl group, the 3-position enol hydroxyl group has higher activity on electrophiles, and it is the product of 3-O-alkylation during O-alkylation modification. Mainly. 3-O-Ethyl ascorbate ether is a product of ascorbic acid-3-O-ethylation. It has a simple molecular structure and is easily absorbed by the skin. After entering the dermis through the stratum corneum of the skin, it is easily decomposed by the biological enzymes in the human body. The effect of ascorbic acid effectively solves the fat solubility problem of ascorbic acid, and is widely used in cosmetics as a whitening agent and antioxidant. Uses Vitamin C ethyl ether (VC ethyl ether) is a lipophilic and hydrophilic amphoteric vitamin C derivative. It not only retains the redox effect of vitamin C but is also very stable. It is a non-discoloring vitamin C derivative. It is a lipophilic and chemicalbook amphoteric substance, which not only makes it extremely convenient to use in the formula, but also makes it easy to penetrate the stratum corneum into the dermis. After entering the skin, it is easily decomposed by biological enzymes to play the role of vitamin C, thereby Improve its bioavailability. Uses 3-O-Ethyl-L-ascorbic Acid could be a useful stabilizing agent for a para-hydroxyacetophenone solution. 3-O-Ethyl-L-ascorbic Acid could be a useful stabilizing agent for a para- hydroxyacetophenone solution. Mechanism of action VC ethyl ether penetrates the stratum corneum to reach the melanocytes in the basal layer, inhibits tyrosinase activity, inhibits the formation of melanin, and restores melanin to colorless, thereby effectively whitening the skin. And Chemicalbook and VC ethyl ether can directly participate in the synthesis of collagen and repair skin cell activity after entering the dermis, increasing collagen, so that the skin becomes full and elastic, making the skin delicate and smooth. Chemical Synthesis The above 3-O-ethyl-5,6-O-isopropylideneascorbic acid 40g dissolved in 200ml of ethanol. 10g of cation-exchange resin was added and was refluxed for 2 hours. The catalyst was removed by an ion exchange resin and concentrated under reduced pressure. After drying, with ethyl acetate: hexane (3: 1) crystallization. After drying, obtained 33.3g 3-O-ethylascorbic acid, yield 94%. It was recrystallized in 100mL ethyl acetate giving 30.6g, yield 87%, mp: 112-114°C.   3-O-Ethyl-L-ascorbic acid Preparation Products And Raw materials Raw materials L-Ascorbic acid, 3-O-ethyl-5,6-O-(1-methylethylidene)--->Bromoethane