ChemicalBook--->CAS DataBase List--->89-65-6

89-65-6

89-65-6 Structure

89-65-6 Structure
IdentificationMore
[Name]

D-Isoascorbic acid
[CAS]

89-65-6
[Synonyms]

2,3-didehydro-d-erythro-hexono-1,4-lactone
D-(-)-ARABOASCORBIC ACID
D-ARABOASCORBIC ACID
D-(-)-ERYTHORBIC ACID
D-ERYTHORBIC ACID
D-ERYTHRO-3-KETOHEXANOIC ACIDLACTONE
D-ERYTHRO-3-OXOHEXANOIC ACID LACTONE
D-Erythro-hex-2-enonic acid
D-ERYTHRO-HEX-2-ENONIC ACID, GAMMA-LACTONE
D(-)-ISOASCORBIC ACID
D-ISOASCORBIC ACID
ERYCORBIN
ERYTHORBIC ACID
FEMA 2410
ISOASCORBIC ACID
ISOVITAMIN C
NEOCEBICURE
SACCHAROSONIC ACID
3-keto-d-erythro-hexonicacigamma-lactone
araboascorbicacid
[EINECS(EC#)]

201-928-0
[Molecular Formula]

C6H8O6
[MDL Number]

MFCD00005378
[Molecular Weight]

176.12
[MOL File]

89-65-6.mol
Chemical PropertiesBack Directory
[Appearance]

Crystalline
[Melting point ]

169-172 °C (dec.) (lit.)
[alpha ]

-17.25 º (c=10, H2O 25 ºC)
[Boiling point ]

227.71°C (rough estimate)
[density ]

1.3744 (rough estimate)
[vapor pressure ]

0Pa at 25℃
[FEMA ]

2410
[refractive index ]

-17.5 ° (C=10, H2O)
[storage temp. ]

Store at 0-5°C
[solubility ]

H2O: 0.1 g/mL, clear, colorless to very faintly yellow
[form ]

Crystals or Crystalline Powder
[pka]

4.09±0.10(Predicted)
[color ]

White to slightly yellow
[Odor]

odorless
[Stability:]

Stable. Combustible. Incompatible with chemically active metals, aluminium, zinc, copper, magnesium, strong bases, strong oxidizing agents.
[optical activity]

[α]25/D 16.8°, c = 2 in H2O
[Water Solubility ]

1g/10mL
[Merck ]

14,5126
[BRN ]

84271
[InChIKey]

CIWBSHSKHKDKBQ-JLAZNSOCSA-N
[LogP]

-1.69 at 25℃
[Uses]

Erythorbic Acid is a food preservative that is a strong reducing agent (oxygen accepting) which functions similarly to antioxidants. In the dry crystalline state it is nonreactive, but in water solutions it reacts readily with atmospheric oxygen and other oxidizing agents, making it valuable as an antioxidant. During preparation, dissolving and mixing should incorporate a minimum amount of air, and storage should be at cool temperatures. It has a solubility of 43 g/100 ml of water at 25°c. One part is equivalent to one part ascorbic acid and equivalent to one part sodium erythorbate. It is used to control oxidative color and flavor deterioration in fruits at 150–200 ppm. It is used in meat curing to speed and control the nitrite curing reaction and prolong the color of cured meat at levels of 0.05%.
[CAS DataBase Reference]

89-65-6(CAS DataBase Reference)
[EPA Substance Registry System]

89-65-6(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S24/25:Avoid contact with skin and eyes .
[WGK Germany ]

2
[RTECS ]

KF3015000
[TSCA ]

Yes
[HS Code ]

29329990
[Hazardous Substances Data]

89-65-6(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Sodium Methoxide-->D(+)-Glucose-->Starch-->Calcium gluconate-->Gluconic acid-->Sodium erythorbate-->Zinc silicate-->Trimethacrylate-->methyl 2-oxogluconate-->arabinosone-->dehydroerythorbic acid-->2-oxogluconic acid-->Alanine, ethyl ester (9CI)
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

2,3-Didehydro-D-erythro-hexono-1,4-lactone(89-65-6).msds
Hazard InformationBack Directory
[Chemical Properties]

Erythorbic acid occurs as a white or slightly yellow-colored crystals or powder. It gradually darkens in color upon exposure to light.
[Definition]

ChEBI: D-isoascorbic acid is an ascorbic acid.
[Production Methods]

Erythorbic acid is synthesized by the reaction between methyl 2- keto-D-gluconate and sodium methoxide. It can also be synthesized from sucrose, and produced from Penicillium spp.
[Biotechnological Production]

Yeasts and other fungi synthesize the C5 sugar acid D-erythroascorbic acid which shares structural and physicochemical properties with Asc. D-erythroascorbic acid serves similar protective functions in these microorganisms as Asc does in plants and animals, including the scavenging of reactive oxygen species. The biosynthesis of D-erythroascorbic acid starts from D-arabinose obtained by the microorganism from decaying plant material. D-arabinose, presumably in its 1,4-furanosidic isomeric form, is oxidized by NAD(P)+ specific dehydrogenases to D-arabinono-1,4-lactone, which is further oxidized to D-erythroascorbic acid by D-arabinono-1,4-lactone oxidase. Resting cells of Saccharomyces cerevisiae can synthesize Asc from L-galactose, L-galactono-1,4-lactone, or L-gulono- 1,4-lactone via the pathway naturally used for D-erythroascorbic acid.
[Flammability and Explosibility]

Nonflammable
[Pharmaceutical Applications]

Erythorbic acid is a stereoisomer of L-ascorbic acid, and is used as an antioxidant in foods and oral pharmaceutical formulations. It has approximately 5% of the vitamin C activity of L-ascorbic acid.
[Safety]

Erythorbic acid is widely used in food applications as an antioxidant. It is also used in oral pharmaceutical applications as an antioxidant. Erythorbic acid is generally regarded as nontoxic and nonirritant when used as an excipient. Erythorbic acid is readily metabolized and does not affect the urinary excretion of ascorbic acid.
The WHO has set an acceptable daily intake of erythorbic acid and its sodium salt in foods at up to 5 mg/kg body-weight.
[storage]

Erythorbic acid should be stored in an airtight container, protected from light, in a cool, dry place.
[Purification Methods]

Crystallise D(-)-isoascorbic acid from H2O, EtOH or dioxane. is at 245nm with 7,500 (EtOH). [Reichstein et al. Helv max Chim Acta 17 510, 516 1934, Heslop et al. J Chem Soc 225 1944, Beilstein 18 III/IV 3037, 18/5 V 26.]
[Incompatibilities]

Erythorbic acid is incompatible with chemically active metals such as aluminum, copper, magnesium, and zinc. It is also incompatible with strong bases and strong oxidizing agents.
[Regulatory Status]

GRAS listed. Accepted for use as a food additive in Europe. Included in the FDA Inactive Ingredients Database (oral concentrate and tablets).
Spectrum DetailBack Directory
[Spectrum Detail]

Erythorbic Acid(89-65-6)MS
Erythorbic Acid(89-65-6)1HNMR
Erythorbic Acid(89-65-6)13CNMR
Erythorbic Acid(89-65-6)IR1
Erythorbic Acid(89-65-6)IR2
Erythorbic Acid(89-65-6)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

D(-)-Isoascorbicacid,98%(89-65-6)
[Alfa Aesar]

D-(-)-Isoascorbic acid, 99%(89-65-6)
[Sigma Aldrich]

89-65-6(sigmaaldrich)
[TCI AMERICA]

D-Araboascorbic Acid,>98.0%(T)(89-65-6)
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