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CAS No 89-65-6 , D-Isoascorbic acid

  • Name: D-Isoascorbic acid
  • Synonyms: D-Erythro-hex-2-enonic acid;2,3-Didehydro-D-erythro-hexono-1,4-lactone; D-erythro-Hex-2-enonic acid, gamma-lactone; Erythorbic Acid;D-Araboascorbic acid; D-Araboascorbic acid; Isovitamin C;D-Isoascorbic acid;
  • CAS Registry Number:
  • Melting Point: 167-172 ºC
  • Density: 1.954 g/cm3
  • Refractive index: -17.5 ° (C=10, H2O)
  • Alpha: -17.25 º (C=10, H2O 25 ºC)
  • Water Solubility: 1G/10ML
  • Safety Statements: S24/25
  • Hazard Symbols: Xi: Irritant;
  • EINECS: 201-928-0
  • Molecular Weight: 176.12
  • InChI: InChI=1/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5-/m1/s1
  • Risk Statements: S24/25
  • Molecular Formula: C6H8O6
  • Molecular Structure:CAS No:89-65-6 D-Isoascorbic acid
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89-65-6 D-Isoascorbic acid

  • United States HBCChem, Inc. [Manufacturers]
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  • Address: Union City,CaliforniaUnited States
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89-65-6 D-Isoascorbic acid

  • D-Isoascorbic acid
  • United States Chem-Impex International, Inc. [Manufacturer]
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  • Address: 935 Dillon Drive Wood Dale IL 60191 USA ,United States
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89-65-6 D-(-)-Isoascorbic acid

  • D-(-)-Isoascorbic acid
  • China Sunkingchem Pharmaceutical Co., Ltd. [Manufacturer]
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  • Address: A-703, Gaofa Building, Jiuxing Road 6#, Hi-Tech Zone 610041, Chengdu, Sichuan, China.610041 ChengduCHINA Chengdu,China
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89-65-6 D-(-)-ISOASCORBIC ACID

  • D-(-)-ISOASCORBIC ACID
  • China Shenzhen sailing chemical Co.,Ltd [Manufacturer]
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  • Address: 1-403 Bei tou hao yuan Nanxing Road Nanshan District Shenzhen, Guangdong 518051 shenzhenCHINA shenzhen,China
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89-65-6 D-Isoascorbic acid

  • China ORCHID CHEMICAL SUPPLIES LTD (OCS) [Importer/Exporter]
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  • Address: 607, North Zhongshan Road, Hangzhou 310000 China ,ZhejiangChina
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89-65-6 d-Isoascorbic Acid

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89-65-6 ISOASCORBIC ACID(RG)

  • ISOASCORBIC ACID(RG)
  • United States ChromaDex Inc. [Manufacturer]
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89-65-6 Erythorbic Acid

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  • China HuaiBei SanHe Developing Co., Ltd. [Manufacturers]
  • Tel: 86-561-3191113
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  • Address: Room 201,Building ZY-1,GuCheng Road,Huaibei,Anhui,China ,anhuiChina
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References of D-Isoascorbic acid
Title: Isoascorbic Acid
CAS Registry Number: 89-65-6
CAS Name: D-erythro-Hex-2-enonic acid g-lactone
Synonyms: D-araboascorbic acid; erythorbic acid; isovitamin C; saccharosonic acid; glucosaccharonic acid; D-erythro-3-ketohexonic acid lactone; D-erythro-3-oxohexonic acid lactone; erycorbin
Trademarks: Mercate "5"; Neo-Cebicure
Molecular Formula: C6H8O6
Molecular Weight: 176.12
Percent Composition: C 40.92%, H 4.58%, O 54.51%
Literature References: Epimer of L-ascorbic acid. Has one-twentieth of the vitamin C activity of L-ascorbic acid. Prepd by treating methyl 2-keto-D-gluconate with sodium methoxide: Maurer, Schiedt, Ber. 66, 1054 (1933); 67, 1239 (1934); Ohle et al., ibid. 67, 324 (1934); Baird et al., J. Chem. Soc. 1934, 63; Reichstein et al., Helv. Chim. Acta 17, 516 (1934). Synthesis from sucrose: Heimann, Reiff, Pharm. Zentralhalle 93, 97 (1954). Production by Penicillium spp: Takahashi et al., Nature 188, 411 (1960); US 3052609 (1962 to Sankyo); Bull. Agric. Chem. Soc. Jpn. 24, 533 (1960), C.A. 55, 1788 (1961). Conformation: Matsui et al., Agric. Biol. Chem. 27, 185 (1963).
Properties: Shiny granular crystals from water or dioxane. Dec 174°. [a]D16.5 -17° (c = 1.8 in 0.01N HCl); [a]D20 -16.6° (H2O). Soluble in water, alc, pyridine. Moderately sol in acetone. Slightly sol in glycerol.
Optical Rotation: [a]D16.5 -17° (c = 1.8 in 0.01N HCl); [a]D20 -16.6° (H2O)
 
Derivative Type: Sodium salt
Synonyms: Sodium erythorbate
Trademarks: Mercate "20"; Neo-Cebitate
Properties: Crystals, sol in water. pH of aq solns of the sodium salt between 5 and 6. A 10% soln, made from commercial grade, may have a pH of 7.2 to 7.9. The free acid is more sol in water (40 g/100 ml H2O) than the sodium salt (16 g/100 ml H2O).
 
Use: Antioxidant and antimicrobial agent for foods: Kadin, Osadca, J. Agric. Food Chem. 7, 358 (1959).