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The World Largest Manufacturer Factory Supply ANTIMONY SODIUM GLUCONATE CAS 16037-91-5

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    The World Largest Manufacturer Factory Supply ANTIMONY SODIUM GLUCONATE CAS 16037-91-5

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    Brand Name : info@leader-biogroup.com
    Model Number : LD
    Certification : ISO,GMP,SGS,HALA,KOSER,HACCP
    Price : Negotiate Depend on order quantity
    Payment Terms : Western Union, MoneyGram, T/T, L/C
    Supply Ability : 10MTS/Month
    Delivery Time : 2-3 working days
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    The World Largest Manufacturer Factory Supply ANTIMONY SODIUM GLUCONATE CAS 16037-91-5

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    Product Name:CHLOROPHYLL A
    Synonyms:chlorophyllafromspinach;Magnesium,(3,7,11,15-tetramethyl-2-hexadecenyl9-nyl-14-ethyl-(carbonyl)-4,8,13,18-tetramethyl-20-oxo-3-phorbinepropanoate(2-)-N23,N24,N25,N26)-(SP-4-2(3S-(3α(2E,7S*,11S*),4β,21β)))-;magnesium,[3,7,11,15-tetramethyl-2-hexadecenyl9-nyl-14-ethyl-21-(c;Paste chlorophyll;Chlorophyll,paste;CONTAMINON(R) CL;CHLOROPHYLL EXTRACT;CHLOROPHYLL A
    CAS:479-61-8
    MF:C55H72MgN4O5
    MW:893.49
    EINECS:207-536-6
    Product Categories:Organometallics;Colorants;Other BiochemicalResearch Essentials;Biochemicals Found in Plants;Natural Dyes;Hematology and Histology;Miscellaneous Biochemicals;Core Bioreagents;Nutrition Research;Stains and Dyes;Other Biochemical;CResearch Essentials;Stains&Dyes, A to
    Mol File:479-61-8.mol
    CHLOROPHYLL A Structure
    CHLOROPHYLL A Chemical Properties
    Melting point117-120°
    alphaD20 -262° ()
    storage temp.2-8°C
    solubilitydiethyl r: soluble0.1mg/10 mL
    formpowder
    Merck13,2174
    BRN3586237
    Stability:Stable, but may discolour upon exposure to light. Incompatible with strong oxidizing agents. May be air sensitive.
    InChIKeyATNHDLDRLWWWCB-AENOIHSZSA-M
    EPA Substance Registry SystemChlorophyll a (479-61-8)
    CHLOROPHYLL A Usage And Synthesis
    Chemical Propertiessolid
    UsesChlorophyll A is a photosynthetic pigment that is essential for photosynthesis of eukaryotes and cyanobacteria, acting as a primary donor in the electron transport chain.
    DefinitionOccurs in all photosynthetic organisms and is the major species in all of those that evolve oxygen.
    Purification MethodsIt forms green crystals from Me2CO, Et2O/H2O, Et2O/hexane/H2O or Et2O/pentane /H2O. It is sparingly soluble in MeOH and insoluble in pet r. In alkaline solution it gives a blue-green colour with deep red fluorescence. A very crude chlorophyll mixture has been purified by chromatography on low melting polyethylene (MI 0.044; “Dow” melting index MI <2) and developed with 70% aqueous Me2CO. The order of effluent from the bottom of the column is: xanthophylls, chlorophyll b , chlorophyll a, phaeophytins and carotenes. A mixture of chlorophylls a and b is best separated by chromatography on sugar, and the order is chlorophyll b elutes first followed by chlorophyll a. To an Me2CO/H2O solution of chlorophylls 200mL of iso-octane are added, and the mixture shaken in a separating funnel and the H2O is carefully removed. The iso-octane layer is dried (Na2SO4) and applied onto a glass column (5cm diameter) dry packed with 1000mL of powdered sucrose which has been washed with 250mL of iso-octane. Elution with 0.5% of isopropanol in iso-octane gives chlorophyll a. Keeping the eluate overnight at 0o yields micro crystals which are collected by filtration or centrifugation (Yield 40mg). UVEtOH has max 660, 613, 577, 531, 498, 429 and 409 nm. Note that anhydrous chlorophylls can be easily enolized, epimerized or allomerized in dry polar organic solvents.
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