China Largest Factory Manufacturer sales Abscisic acid CAS 21293-29-8 CAS NO.21293-29-8

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(+)-Abscisic acid Basic information Product Name: (+)-Abscisic acid Synonyms: (ABA)ABSCISIC ACID >98%;(+)-Abscisic acid;ABA;ABA, Dormin, (S)-5-(1-Hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid;S-(+)-ABA;S-ABA;(S)-(+)-ABSCISIC ACID;[S]-5-[1-HYDROXY-2,6,6-TRIMETHYL-4-OXOCYCLOHEX-2-EN-1-YL]-3-METHYL-[2Z,4E]-PENTADIENOIC ACID CAS: 21293-29-8 MF: C15H20O4 MW: 264.32 EINECS: 244-319-5 Product Categories: plantgrowth;Agro-Products;Sesqui-Terpenoids;Chiral Reagents;Biochemistry;Plant Hormones;Pharmaceutical Raw Materials;Plant Growth Regulators;Plant Growth Trgulators (Others);Inhibitors;Plant Growth regulator Mol File: 21293-29-8.mol   (+)-Abscisic acid Chemical Properties Melting point  188 °C alpha  D20 +411.1° (c = 1 in ethanol); D20 +426.5° (c = 1 in 0.005N methanolic H2SO4) Boiling point  327.55°C (rough estimate) density  1.0583 (rough estimate) refractive index  410 ° (C=0.2, EtOH) storage temp.  2-8°C solubility  Chloroform (Slightly), Ethanol (Sparingly), Methanol (Slightly) pka 4.87±0.33(Predicted) form  Off-white powder color  White to Pale Yellow optical activity [α]/D 415±10°, c = 0.1 in ethanol Merck  14,11 BRN  2698956 InChIKey JLIDBLDQVAYHNE-WEYXYWBQSA-N CAS DataBase Reference 21293-29-8(CAS DataBase Reference) EPA Substance Registry System 2,4-Pentadienoic acid, 5-[(1S)-1-hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl]-3-methyl-, (2Z,4E)- (21293-29-8)   Safety Information Safety Statements  22-24/25 WGK Germany  3 RTECS  RZ2475100 F  8 HS Code  29189900 MSDS Information Provider Language (+)-Abscisic acid English SigmaAldrich English   (+)-Abscisic acid Usage And Synthesis Chemical Properties White Powder Uses Valacyclovir intermediate Uses The natural isomer of the abscission-accelerating plant hormone Definition ChEBI: The naturally occurring (1'S)-(+) enantiomer of abscisic acid. It is an important sesquiterpenoid plant hormone which acts as a regulator of plant responses to environmental stresses such as drought and cold. Biochem/physiol Actions Plant hormone and growth regulator that is involved in several physiological mechanisms including seed dormancy, leaf abscission, stomatal movement, and plant stress responses. Through complex interactions with several intracellular signaling systems, it can regulate the expression of hundreds of plant genes. Purification Methods Crystallise the acid from CCl4/pet ether, EtOH/hexane and sublime it at 120o. Also purify it by dissolving ~30g in 30mL of EtOAc, adding 100mL of hexane and allow to crystallise overnight (yield 8.4g), m 156-158o, 161-163o, [] D +426o (c 0.005M H2SO4 in MeOH). [Cornforth et al. Nature (London) 206 715 1965, Soukemp et al. Helv Chim Acta 72 361 1989.] The RS-isomer was purified on a Kieselgel F254 plate with toluene/EtOAc/AcOH (50:50:3) and has m 188-190o [Cornforth et al. Aust J Chem 45 179 1992]. [Beilstein 17/3 V 13.]   (+)-Abscisic acid 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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(+)-Abscisic acid Basic information Product Name: (+)-Abscisic acid Synonyms: (ABA)ABSCISIC ACID >98%;(+)-Abscisic acid;ABA;ABA, Dormin, (S)-5-(1-Hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl)-3-methyl-(2Z,4E)-pentadienoic acid;S-(+)-ABA;S-ABA;(S)-(+)-ABSCISIC ACID;[S]-5-[1-HYDROXY-2,6,6-TRIMETHYL-4-OXOCYCLOHEX-2-EN-1-YL]-3-METHYL-[2Z,4E]-PENTADIENOIC ACID CAS: 21293-29-8 MF: C15H20O4 MW: 264.32 EINECS: 244-319-5 Product Categories: plantgrowth;Agro-Products;Sesqui-Terpenoids;Chiral Reagents;Biochemistry;Plant Hormones;Pharmaceutical Raw Materials;Plant Growth Regulators;Plant Growth Trgulators (Others);Inhibitors;Plant Growth regulator Mol File: 21293-29-8.mol   (+)-Abscisic acid Chemical Properties Melting point  188 °C alpha  D20 +411.1° (c = 1 in ethanol); D20 +426.5° (c = 1 in 0.005N methanolic H2SO4) Boiling point  327.55°C (rough estimate) density  1.0583 (rough estimate) refractive index  410 ° (C=0.2, EtOH) storage temp.  2-8°C solubility  Chloroform (Slightly), Ethanol (Sparingly), Methanol (Slightly) pka 4.87±0.33(Predicted) form  Off-white powder color  White to Pale Yellow optical activity [α]/D 415±10°, c = 0.1 in ethanol Merck  14,11 BRN  2698956 InChIKey JLIDBLDQVAYHNE-WEYXYWBQSA-N CAS DataBase Reference 21293-29-8(CAS DataBase Reference) EPA Substance Registry System 2,4-Pentadienoic acid, 5-[(1S)-1-hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl]-3-methyl-, (2Z,4E)- (21293-29-8)   Safety Information Safety Statements  22-24/25 WGK Germany  3 RTECS  RZ2475100 F  8 HS Code  29189900 MSDS Information Provider Language (+)-Abscisic acid English SigmaAldrich English   (+)-Abscisic acid Usage And Synthesis Chemical Properties White Powder Uses Valacyclovir intermediate Uses The natural isomer of the abscission-accelerating plant hormone Definition ChEBI: The naturally occurring (1'S)-(+) enantiomer of abscisic acid. It is an important sesquiterpenoid plant hormone which acts as a regulator of plant responses to environmental stresses such as drought and cold. Biochem/physiol Actions Plant hormone and growth regulator that is involved in several physiological mechanisms including seed dormancy, leaf abscission, stomatal movement, and plant stress responses. Through complex interactions with several intracellular signaling systems, it can regulate the expression of hundreds of plant genes. Purification Methods Crystallise the acid from CCl4/pet ether, EtOH/hexane and sublime it at 120o. Also purify it by dissolving ~30g in 30mL of EtOAc, adding 100mL of hexane and allow to crystallise overnight (yield 8.4g), m 156-158o, 161-163o, [] D +426o (c 0.005M H2SO4 in MeOH). [Cornforth et al. Nature (London) 206 715 1965, Soukemp et al. Helv Chim Acta 72 361 1989.] The RS-isomer was purified on a Kieselgel F254 plate with toluene/EtOAc/AcOH (50:50:3) and has m 188-190o [Cornforth et al. Aust J Chem 45 179 1992]. [Beilstein 17/3 V 13.]   (+)-Abscisic acid Preparation Products And Raw materials