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89-65-6

Basic Information
CAS No.: 89-65-6
Name: D-Isoascorbic acid
Article Data: 15
Molecular Structure:
Molecular Structure of 89-65-6 (D-Isoascorbic acid)
Formula: C6H8O6
Molecular Weight: 176.126
Synonyms: D-erythro-Hexonicacid, 3-keto-, g-lactone(6CI);Erythorbic acid (7CI);Araboascorbic acid;Araboascorbic acid, D-;D-(-)-Isoascorbic acid;D-Araboascorbic acid;D-Erythorbic acid;D-arabino-Ascorbic acid;E 315;Erycorbin;Glucosaccharonic acid;Isoascorbic acid;Isovitamin C;Mercate 5;Neo-Cebicure;Saccharosonic acid;Erythorbic acid;
EINECS: 201-928-0
Density: 1.954 g/cm3
Melting Point: 169-172 °C (dec.)(lit.)
Boiling Point: 552.7 °C at 760 mmHg
Flash Point: 238.2 °C
Solubility: 0.1 g/mL in water
Appearance: Crystalline
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-24/25
PSA: 107.22000
LogP: -1.40740
Synthetic route
3445-24-7

D-erythro-pentos-2-ulose

89-65-6

isoascorbic acid

Conditions
ConditionsYield
With potassium cyanide; nitrogen; water anschl. mit wss. HCl unter Ausschluss von Luft;
21063-40-1

D-arabino-[2]hexulosonic acid methyl ester

89-65-6

isoascorbic acid

Conditions
ConditionsYield
With manganese; water
With water; iron
With water; sodium hydrogencarbonate
calcium salt of/the/ D-arabino-<2>hexulosonic acid

calcium salt of/the/ D-arabino-<2>hexulosonic acid

89-65-6

isoascorbic acid

Conditions
ConditionsYield
With ethanol; sulfuric acid anschl. mit Dicyclohexylamin und dann mit wss. NaOH;
potassium-salt of/the/ O2,O3;O4,O5-diisopropylidene-β(?)-D-arabino-<2>hexulopyranosonic acid

potassium-salt of/the/ O2,O3;O4,O5-diisopropylidene-β(?)-D-arabino-<2>hexulopyranosonic acid

89-65-6

isoascorbic acid

Conditions
ConditionsYield
With methanol; sulfuric acid; water
sodium-salt of/the/ D-arabino-<2>hexulosonic acid

sodium-salt of/the/ D-arabino-<2>hexulosonic acid

89-65-6

isoascorbic acid

Conditions
ConditionsYield
With methanol; sulfuric acid anschl. mit wss. NaHCO3;
With methanol; sulfuric acid anschl. mit wss. Na2CO3;
67-56-1

methanol

109-89-7

diethylamine

2-keto-D-gluconic acid methyl ester

2-keto-D-gluconic acid methyl ester

89-65-6

isoascorbic acid

Conditions
ConditionsYield
at 70℃;
67-56-1

methanol

2-keto-D-gluconic acid methyl ester

2-keto-D-gluconic acid methyl ester

89-65-6

isoascorbic acid

Conditions
ConditionsYield
at 70℃;
7647-01-0

hydrogenchloride

669-90-9

fructonic acid

89-65-6

isoascorbic acid

Conditions
ConditionsYield
at 60℃; Rate constant; und 70grad;
2-keto-D-gluconic acid methyl ester

2-keto-D-gluconic acid methyl ester

89-65-6

isoascorbic acid

Conditions
ConditionsYield
at 70℃;
5959-82-0

D-erythro-2,3-hexodiulosono-1,4-lactone

89-65-6

isoascorbic acid

Conditions
ConditionsYield
With ascorbic acid In phosphate buffer at 20℃; for 24h; pH=7.4; Product distribution; Reduction;
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Chemistry

Molecular Structure of D-Isoascorbic acid (CAS NO.89-65-6):

IUPAC Name: 2-(1,2-dihydroxyethyl)-4,5-dihydroxyfuran-3-one 
Empirical Formula: C6H8O6
Molecular Weight: 176.1241
EINECS: 201-928-0
Melting point: 169-172 °C (dec.)(lit.)
Boiling Point: 552.7 °C at 760 mmHg 
Flash Point: 238.2 °C 
Index of Refraction: 1.711 
Molar Refractivity: 35.26 cm3 
Molar Volume: 90.1 cm
Polarizability: 13.97 10 -24 cm3 
Surface Tension: 140.5 dyne/cm 
Density: 1.954 g/cm
Enthalpy of Vaporization: 95.78 kJ/mol 
Vapour Pressure: 1.62E-14 mmHg at 25°C 
alpha: -17.25 o (c=10, H2O 25 oC)
Storage temp: Store at 0-5°C
Water Solubility: 1g/10mL 
Appearance: Crystalline
Merck: 14,5126
Stability: Stable. Combustible. Incompatible with chemically active metals, aluminium, zinc, copper, magnesium, strong bases, strong oxidizing agents. 
Product Categories: Food and Feed Additive; Sugar Acids; Vitamin Derivatives; Biochemistry;Sugars; Vitamins; Water Ttreatment Chemicals

Toxicity Data With Reference

1.    

mma-sat 50 mg/plate

    FCTOD7    Food and Chemical Toxicology. 22 (1984),623.
2.    

dnd-uns:lyms 5 mmol/L

    JNSVA5    Journal of Nutritional Science and Vitaminology. 21 (1975),237.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Mutation data reported. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes of D-Isoascorbic acid (CAS NO.89-65-6):IrritantXi
Risk Statements:
36/37/38:  Irritating to eyes, respiratory system and skin 
Safety Statements:
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
24/25:  Avoid contact with skin and eyes 
WGK Germany: 2
RTECS: KF3015000

Specification

  D-Isoascorbic acid , with CAS number of 89-65-6, can be called D-erythro-Hexonicacid, 3-keto-, g-lactone(6CI) ; Araboascorbic acid ; Araboascorbic acid, D- ; D-(-)-Isoascorbic acid ; D-Araboascorbic acid ; D-Erythorbic acid ; Glucosaccharonic acid ; Saccharosonic acid .