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DEHYDROASCORBIC ACID

DEHYDROASCORBIC ACID Structure
DEHYDROASCORBIC ACID
  • CAS No.490-83-5
  • Chemical Name:DEHYDROASCORBIC ACID
  • CBNumber:CB1397000
  • Molecular Formula:C6H6O6
  • Formula Weight:174.11
  • MOL File:490-83-5.mol
DEHYDROASCORBIC ACID Property
  • Melting point 228 °C (dec.)(lit.)
  • alpha D20 +56°
  • Boiling point 389.3±38.0 °C(Predicted)
  • Density 1.743±0.06 g/cm3(Predicted)
  • storage temp. -20°C
  • solubility DMSO (Slightly, Heated), Methanol (Slightly, Sonicated)
  • form Solid
  • pka 3.90(at 25℃)
  • color White to Dark Orange
  • Merck 13,2886
  • Stability Light Sensitive
  • LogP -1.702 (est)
  • CAS DataBase Reference 490-83-5(CAS DataBase Reference)
  • EWG's Food Scores 1
  • FDA UNII Y2Z3ZTP9UM
  • UNSPSC Code 12352205
  • NACRES NA.22
Safety
  • Hazard Codes  :Xn
  • Risk Statements  :22
  • WGK Germany  :3
  • F  :1-8-10
  • HS Code  :2936270000
  • NFPA 704:
    0
    2 0
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements H302
  • Precautionary statements P264-P270-P301+P312+P330-P501
DEHYDROASCORBIC ACID Price More Price(3)
  • Brand: Sigma-Aldrich(India)
  • Product number: 261556
  • Product name : (L)-Dehydroascorbic acid
  • Purity: 
  • Packaging: 250MG
  • Price: ₹6646.55
  • Updated: 2022/06/14
  • Buy: Buy
  • Brand: Sigma-Aldrich(India)
  • Product number: 261556
  • Product name : (L)-Dehydroascorbic acid
  • Purity: 
  • Packaging: 1G
  • Price: ₹12156.48
  • Updated: 2022/06/14
  • Buy: Buy
  • Brand: Sigma-Aldrich(India)
  • Product number: 261556
  • Product name : (L)-Dehydroascorbic acid
  • Purity: 
  • Packaging: 5G
  • Price: ₹22743.33
  • Updated: 2022/06/14
  • Buy: Buy

DEHYDROASCORBIC ACID Chemical Properties,Usage,Production

  • Chemical Properties Orange Solid
  • Uses The reversibly oxidized form of ascorbic acid.
  • Definition ChEBI: Dehydroascorbic acid having the L-configuration.
  • IC 50 Human Endogenous Metabolite
  • Purification Methods Crystallise dehydro-L(+)-ascorbic acid from MeOH. The anhydrous acid is formed by heating it in a vacuum at 100o/1hour to give a crisp glassy product which when shaken with absolute EtOH and then kept at 0o for 2days gives microcrystals of the anhydrous acid. This is then washed with absolute EtOH and dried in a vacuum. It has m 225o(dec) and is stable in acidic solution but decomposes rapidly in alkaline solution. A 1% solution of the anhydrous acid when dissolved in phthalate/HCl buffer pH 3.5 at 60o and cooled to 20o has [] 20D +56o(0minutes), +53.5o(2hours), +19o(3days), -2o(5days) and -6o(6days); then it becomes orange in colour. A freshly prepared 1% solution in H2O has [] D +50o(0minutes), +44o(2hours), +16o(3days) and 0o(5days). [Herbert et al. J Chem Soc 1270 1933, Kenyon et al. J Chem Soc 158 1948, Beilstein 18/5 V 411.]
DEHYDROASCORBIC ACID Preparation Products And Raw materials
Raw materials
Preparation Products
DEHYDROASCORBIC ACID Suppliers
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DEHYDROASCORBIC ACID Spectrum
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  • 490-83-5
  • (<sc>L</sc>)-Dehydroascorbic acid
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  • BIS-DHA
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  • Dehydroascorbate
  • TIANFUCHEM--High purity 490-83-5 DEHYDROASCORBIC ACID
  • DEHYDROASCORBIC ACID USP/EP/BP
  • ehydroascorbicaci
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  • L-threo-2,3-Hexodiulosonic acid, g-lactone
  • (5R)-5-[(1S)-12-dihydroxyethyl]oxolane-234-trione
  • Ascorbic Acid Impurity 18
  • L-(+)-DEHYDROASCORBICACID
  • DEHYDROASCORBIC ACID(RG)
  • 5-(1,2-dihydroxyethyl)oxolane-2,3,4-trione
  • L-threo-2,3-Hexodiulosonic acid, .gamma.-lactone
  • L-threo-hexo-2,3-diulosono-1,4-lactone
  • L-(+)-Dehydroascorbic Acid (1.24728)
  • OXIDIZED VITAMIN C
  • BIS-DEHYDRO-L-ASCORBIC ACID
  • DEHYDRO-L(+)-ASCORBIC ACID, DIMER
  • DEHYDROASCORBIC ACID
  • L-ASCORBIC ACID OXIDIZED
  • Oxidized Ascorbic Acid

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