China Largest Manufacturer factory sales 7-Dehydrocholesterol CAS 434-16-2

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7-Dehydrocholesterol Basic information Product Name: 7-Dehydrocholesterol Synonyms: (3)-7-Dehydrochlesterol;(3beta)-Cholesta-5,7-dien-3-ol;(3-beta)-cholesta-7-dien-3-ol;(3beta)-cholesta-7-dien-3-ol;3-Hydroxycholesta-5,7-diene;cholesta-5,7-dien-3-beta-ol;Cholesta-5,7-dien-3-ol;Cholesta-5,7-dien-3-ol, (3beta)- CAS: 434-16-2 MF: C27H44O MW: 384.64 EINECS: 207-100-5 Product Categories: Intermediates & Fine Chemicals;Pharmaceuticals;Pharmaceutical Raw Materials;Steroids Mol File: 434-16-2.mol   7-Dehydrocholesterol Chemical Properties Melting point  148-152 °C(lit.) alpha  -116 º (C=1, CHCL3) Boiling point  451.27°C (rough estimate) density  0.9717 (rough estimate) refractive index  1.5100 (estimate) storage temp.  -20°C solubility  Chloroform (Sparingly), DMSO (Slightly, Heated, Sonicated), Ethyl Acetate (Sligh form  Solid pka 14.91±0.70(Predicted) color  White to Yellow optical activity [α]20/D -115±8°, c = 1% in chloroform Water Solubility  Insoluble Merck  13,2887 BRN  2224615 Stability: Light Sensitive InChIKey UCTLRSWJYQTBFZ-DDPQNLDTSA-N CAS DataBase Reference 434-16-2(CAS DataBase Reference) NIST Chemistry Reference Cholesta-5,7-dien-3-ol, (3«beta»)-(434-16-2) EPA Substance Registry System Cholesta-5,7-dien-3-ol, (3.beta.)- (434-16-2)   Safety Information Safety Statements  24/25 WGK Germany  3 RTECS  FZ5650000 F  8-10-23 HS Code  29061990 MSDS Information Provider Language ACROS English SigmaAldrich English ALFA English   7-Dehydrocholesterol Usage And Synthesis Description 7-dehydro Cholesterol (7-DHC) is an immediate precursor of cholesterol. It is reduced to cholesterol by the enzyme 3β-hydroxysterol-Δ7-reductase (DHCR7) in the last step of cholesterol biosynthesis. 7-DHC accumulates in Smith-Lemli-Opitz syndrome (SLOS), a disorder characterized by a mutation in the DHCR7 gene and decreased cholesterol levels in bodily tissues and fluids, as well as microcephaly, intellectual disability, and distinctive dysmorphic features. It is highly susceptible to free radical oxidation, giving rise to several oxysterols that may be involved in the pathogenesis of SLOS. 7-DHC levels are increased in brain, liver, and serum in a rat model of SLOS induced by the DHCR7 inhibitor AY 9944 (Item No. 14611). 7-DHC is a provitamin that is converted to vitamin D3 (Item No. 11792) by ultraviolet-B (UVB) light in a human skin equivalent system and in isolated human skin samples. Chemical Properties white to off-white fine crystalline powder Uses A vitamin precursor. Vitamin D3 is produced by the action of sunlight or ultraviolet irradiation from the precursor, 7-dehydrocholesterol (7-DC), that is synthesized in the skin of animals and humans. In most tissues of the body, 7-dehydrocholesterol is the immediate precursor of cholesterol. It is reduced to cholesterol by the enzyme 3β-hydroxysterol-Δ7-reductase (DHCR7) in the last step of cholesterol biosynthesis. 7-DHC accumulates in Smith-Lemli-Opitz syndrome (SLOS), a disorder characterized by a mutation in the DHCR7 gene and decreased cholesterol levels in bodily tissues and fluids, as well as microcephaly, intellectual disability, and distinctive dysmorphic features. It is highly susceptible to free radical oxidation, giving rise to several oxysterols that may be involved in the pathogenesis of SLOS. 7-DHC levels are increased in brain, liver, and serum in a rat model of SLOS induced by the DHCR7 inhibitor AY 9944. 7-DHC is a provitamin that is converted to vitamin D3 by ultraviolet-B (UVB) light in a human skin equivalent system and in isolated human skin samples. Uses 7-Dehydrocholesterol (7-DHC), a 5,7-conjugated diene sterol is a biosynthetic precursor of cholesterol. It helps in the production of vitamin D3 when exposed to ultraviolet B (UVB) radiation. 7-Dehydrocholesterol has been used as an internal standard to determine sterols. 7-dehydrocholesterol is used in the diagnosis of Smith-Lemli-Opitz syndrome. Blood and tissue of infants with Smith- Lemli-Opitz (SLO) syndrome contain reduced amounts of cholesterol and greatly increased concentrations of 7-dehydrocholesterol and of its isomer 8-dehydrocholesterol. Uses A vitamin D3 precursor. General Description 7-Dehydrocholesterol (7-DHC), a 5,7-conjugated diene sterol is a biosynthetic precursor of cholesterol. It helps in the production of vitamin D3 when exposed to ultraviolet B (UVB) radiation. Biochem/physiol Actions Down-regulates cholesterol biosynthesis in cultured Smith-Lemi-Opitz syndrome skin fibroblasts.   7-Dehydrocholesterol Preparation Products And Raw materials Raw materials Cholesterol Preparation Products Vitamin D3-->Δ8(14)-Cholestenol-->(3beta,6Z)-9,10-secocholesta-5(10),6,8-trien-3-ol-->LATHOSTEROL-->DELTA-4,6-CHOLESTADIENOL (30 MG)

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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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