Product Name

  • Name

    L-xylo-hex-2-ulosonic acid

  • EINECS 208-403-5
  • CAS No. 526-98-7
  • Article Data44
  • CAS DataBase
  • Density 1.757g/cm3
  • Solubility 335.3g/L at 20℃
  • Melting Point 171 °C
  • Formula C6H10O7
  • Boiling Point 550.6 °C at 760 mmHg
  • Molecular Weight 194.141
  • Flash Point 300.9 °C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 526-98-7 (L-xylo-hex-2-ulosonic acid)
  • Hazard Symbols
  • Synonyms Gulonicacid, 2-keto-, L- (6CI);L-xylo-Hexulosonic acid (7CI,8CI);Idonic acid,2-keto-, L- (6CI);2-Keto-L-gulonic acid;2-Keto-L-idonic acid;
  • PSA 135.29000
  • LogP -3.28490

Synthetic route

methanol
67-56-1

methanol

L-sorbose
87-79-6

L-sorbose

copper diacetate
142-71-2

copper diacetate

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
Behandeln einer wss.Loesung des von Kupfer-Ionen befreiten Reaktionsprodukts mit Brom;
L-sorbose
87-79-6

L-sorbose

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With oxygen; Pt/Al2O3 at 50℃; under 750.06 Torr; for 2.86667h; other catalysts; var. reaction time;39 % Chromat.
With hexamethylenetetramine; oxygen; platinum on activated charcoal In water at 50℃; under 750.06 Torr; Product distribution; Kinetics; var. of pH, base, catalyst;
With pyridine; oxygen; Pt/Al2O3 In water at 50℃; under 750.06 Torr; Rate constant; var. tertiary amines or tetraalkylammonium hydroxide, var. supports of Pt catalyst;
L-sorbosone
49865-02-3

L-sorbosone

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With water; bromine im diffusen Licht;
O2,O3;O4,O6-dicyclohexylidene-α-L-xylo-[2]hexulofuranosonic acid
52507-87-6

O2,O3;O4,O6-dicyclohexylidene-α-L-xylo-[2]hexulofuranosonic acid

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With water
With water
sodium gluconate
6027-87-8

sodium gluconate

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With sodium chlorate; vanadia
D-sorbitol
50-70-4

D-sorbitol

A

L-idonic acid
1114-17-6

L-idonic acid

B

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
Gluconobacter melanogenus IFO 3293 mutant; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
D-sorbitol
50-70-4

D-sorbitol

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
Gluconobacter melanogenus IFO 3293 mutant; Yield given;
Multi-step reaction with 3 steps
1: 31 percent
2: 46 percent / NaI, Ca(OH)2 / H2O / 1 h / 20 °C / anode - platinum, cathode - stainless steel
3: 0.1N aq. HCl / 1 h / 90 °C
View Scheme
L-sorbose
87-79-6

L-sorbose

A

L-idonic acid
1114-17-6

L-idonic acid

B

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
Gluconobacter melanogenus IFO 3293 mutant; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
3,5,4,6-diethylidene-L-xylo-2-hexulosonic acid
136090-58-9

3,5,4,6-diethylidene-L-xylo-2-hexulosonic acid

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With hydrogenchloride at 90℃; for 1h;
2,5-diketo-D-gluconic acid
2595-33-7

2,5-diketo-D-gluconic acid

A

fructonic acid
669-90-9

fructonic acid

B

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

C

D-lyxo-hex-5-ulosonic acid
13425-76-8

D-lyxo-hex-5-ulosonic acid

D

5-keto-D-gluconic acid
5287-64-9

5-keto-D-gluconic acid

Conditions
ConditionsYield
With Ru-TPPTS; sulfuric acid; hydrogen; sodium iodide In water at 27℃; under 7500.6 Torr; for 8h; Product distribution; other pH, temperature, reaction time, hydrogen pressure, catalyst amount;
L-sorbose
87-79-6

L-sorbose

nitric acid
7697-37-2

nitric acid

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
L-sorbose
87-79-6

L-sorbose

sulfuric acid
7664-93-9

sulfuric acid

dihydrogen peroxide
7722-84-1

dihydrogen peroxide

iron(II) sulfate

iron(II) sulfate

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
calcium salt of/the/ L-gulonic acid

calcium salt of/the/ L-gulonic acid

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With chromium(VI) oxide; iron(III) sulfate; water
calcium salt of/the/ L-idonic acid

calcium salt of/the/ L-idonic acid

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With chromium(VI) oxide; iron(III) sulfate; water
durch aerobe Oxidation mit Hilfe von Enzym-Praeparaten aus Pseudomonas fluorescens;
calcium salt of/the/ D-gluconic acid

calcium salt of/the/ D-gluconic acid

calcium salt of/the/ L-idonic acid

calcium salt of/the/ L-idonic acid

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
durch aerobe Oxidation mit Hilfe eines Enzym-Praeparats aus Pseudomonas fluorescens;
durch aerobe Oxidation mit Hilfe von Enzym-Praeparaten aus Pseudomonas chromo-spirans;
tetrachloromethane
56-23-5

tetrachloromethane

L-sorbose
87-79-6

L-sorbose

dinitrogen tetraoxide
10544-72-6

dinitrogen tetraoxide

calcium sulfate

calcium sulfate

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
Behandeln der Calcium-Salze der erhaltenen Saeuren mit Oxalsaeure in Wasser;
O2,O3;O4,O6-diisopropylidene-α-L-xylo-<2>hexulofuranosonic acid-hydrate

O2,O3;O4,O6-diisopropylidene-α-L-xylo-<2>hexulofuranosonic acid-hydrate

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With water
L-sorbose
87-79-6

L-sorbose

aqueous sodium hydrogencarbonate

aqueous sodium hydrogencarbonate

air

air

platinum/charcoal

platinum/charcoal

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
at 25℃; Schuetteln (16-72 h);
L-sorbose
87-79-6

L-sorbose

water
7732-18-5

water

oxygen

oxygen

platinum/charcoal

platinum/charcoal

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
at 4 - 80℃; pH (3.6-8.4);
L-sorbose
87-79-6

L-sorbose

nitric acid
7697-37-2

nitric acid

sodium nitrite

sodium nitrite

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
sodium-salt of/the/ L-gulonic acid

sodium-salt of/the/ L-gulonic acid

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With water; sodium acetate; acetic acid und Vanadium(V)-oxid und Natriumchlorat;
sodium-salt of/the/ L-idonic acid

sodium-salt of/the/ L-idonic acid

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With water; acetic acid; sodium bromide und Chrom(VI)-oxid bei der anodischen Oxidation;
With sodium chlorate; phosphoric acid; water anschl. mit Methanol und Vandium(V)-oxid;
L-sorbose
87-79-6

L-sorbose

aqueous NaOH-solution

aqueous NaOH-solution

oxygen

oxygen

platinum/charcoal

platinum/charcoal

A

L-threonic acid
7306-96-9

L-threonic acid

B

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

C

oxalic acid
144-62-7

oxalic acid

Conditions
ConditionsYield
L-sorbopyranose
7270-77-1

L-sorbopyranose

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
With oxygen; sodium carbonate; hyper-cross-linked polystyrene-Pt-THF at 70℃; for 3.66667h; pH=5.9; Product distribution; Further Variations:; Temperatures; pH-values;
calcium-salt of/the/ L-idonic acid

calcium-salt of/the/ L-idonic acid

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
durch aerobe Oxidation mit Hilfe von Enzym-Praeparaten aus Pseudomonas-Arten sowie aus Acetobacter aerogenes;
1,3:2,4-di-O-ethylidene-D-sorbitol
50895-31-3

1,3:2,4-di-O-ethylidene-D-sorbitol

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 46 percent / NaI, Ca(OH)2 / H2O / 1 h / 20 °C / anode - platinum, cathode - stainless steel
2: 0.1N aq. HCl / 1 h / 90 °C
View Scheme
L-xylo-[2]hexosulose bis-phenylhydrazone
5934-57-6

L-xylo-[2]hexosulose bis-phenylhydrazone

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: benzaldehyde; water; ethanol / Reagens: Essigsaeure
2: water; bromine / im diffusen Licht
View Scheme
O2,O3;O4,O6-dicyclohexylidene-α-L-sorbofuranose
20880-90-4

O2,O3;O4,O6-dicyclohexylidene-α-L-sorbofuranose

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: pyridine; potassium hydroxide; potassium permanganate
2: water
View Scheme
Reaxys ID: 11364755

Reaxys ID: 11364755

A

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

B

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
In Tri-n-octylamine; 8-methyl-1-nonanol; tri(n-decyl)amine; water at 30℃; Purification / work up;
2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

L-xylo-[2]hexulosonic acid methyl ester
3031-98-9

L-xylo-[2]hexulosonic acid methyl ester

Conditions
ConditionsYield
With methanol; diethyl ether at -10℃;
Diazoethan
1117-96-0

Diazoethan

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

L-xylo-[2]hexulosonic acid ethyl ester
5965-56-0

L-xylo-[2]hexulosonic acid ethyl ester

Conditions
ConditionsYield
With ethanol
methanol
67-56-1

methanol

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

L-xylo-[2]hexulosonic acid methyl ester
3031-98-9

L-xylo-[2]hexulosonic acid methyl ester

Conditions
ConditionsYield
With hydrogenchloride; trimethyl orthoformate
With hydrogenchloride; dimethylsulfite
With acidic cationen-exchanger
sulfuric acid at 65 - 66℃; under 760.051 Torr; for 2 - 2.5h;90 - 97 %Chromat.
propan-1-ol
71-23-8

propan-1-ol

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

L-xylo-[2]hexulosonic acid propyl ester
109848-63-7

L-xylo-[2]hexulosonic acid propyl ester

Conditions
ConditionsYield
With acidic cationen-exchanger
ethanol
64-17-5

ethanol

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

L-xylo-[2]hexulosonic acid ethyl ester
5965-56-0

L-xylo-[2]hexulosonic acid ethyl ester

Conditions
ConditionsYield
With acidic cationen-exchanger
i-Amyl alcohol
123-51-3

i-Amyl alcohol

2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

L-xylo-[2]hexulosonic acid isopentyl ester
110462-68-5

L-xylo-[2]hexulosonic acid isopentyl ester

Conditions
ConditionsYield
With acidic cationen-exchanger
2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

2-methyl-propan-1-ol
78-83-1

2-methyl-propan-1-ol

L-xylo-[2]hexulosonic acid isobutyl ester
113535-34-5

L-xylo-[2]hexulosonic acid isobutyl ester

Conditions
ConditionsYield
With acidic cationen-exchanger
2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

ascorbic acid
50-81-7

ascorbic acid

Conditions
ConditionsYield
With hydrogenchloride; water; butan-1-ol
With water at 100℃;
With hydrogenchloride; water
2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

isopropyl alcohol
67-63-0

isopropyl alcohol

L-xylo-[2]hexulosonic acid isopropyl ester
88669-03-8

L-xylo-[2]hexulosonic acid isopropyl ester

Conditions
ConditionsYield
With acidic cationen-exchanger
2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

benzyl alcohol
100-51-6

benzyl alcohol

L-xylo-[2]hexulosonic acid benzyl ester
98056-03-2

L-xylo-[2]hexulosonic acid benzyl ester

Conditions
ConditionsYield
With cationen-exchanger at 130℃;
2-keto-L-gulonic acid
526-98-7

2-keto-L-gulonic acid

butan-1-ol
71-36-3

butan-1-ol

L-xylo-[2]hexulosonic acid butyl ester
98055-99-3

L-xylo-[2]hexulosonic acid butyl ester

Conditions
ConditionsYield
With acidic cationen-exchanger

L-xylo-2-Hexulosonicacid Specification

The L-xylo-2-Hexulosonicacid, with CAS registry number 526-98-7, has the systematic name of L-sorbosonic acid. Besides this, it is also called L-xylo-hex-2-ulosonic acid. And the chemical formula of this chemical is C6H10O7. What's more, its EINECS is 208-403-5.

Physical properties of L-xylo-2-Hexulosonicacid: (1)ACD/LogP: -2.82; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): -6.13; (4)ACD/LogD (pH 7.4): -6.56; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 7; (10)#H bond donors: 5; (11)#Freely Rotating Bonds: 9; (12)Polar Surface Area: 80.29 Å2; (13)Index of Refraction: 1.593; (14)Molar Refractivity: 37.45 cm3; (15)Molar Volume: 110.4 cm3; (16)Polarizability: 14.84×10-24cm3; (17)Surface Tension: 108.7 dyne/cm; (18)Density: 1.757 g/cm3; (19)Flash Point: 300.9 °C; (20)Enthalpy of Vaporization: 95.49 kJ/mol; (21)Boiling Point: 550.6 °C at 760 mmHg; (22)Vapour Pressure: 2.04E-14 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(O)C(=O)[C@@H](O)[C@H](O)[C@@H](O)CO
(2)InChI: InChI=1/C6H10O7/c7-1-2(8)3(9)4(10)5(11)6(12)13/h2-4,7-10H,1H2,(H,12,13)/t2-,3+,4-/m0/s1
(3)InChIKey: VBUYCZFBVCCYFD-NUNKFHFFBO
(4)Std. InChI: InChI=1S/C6H10O7/c7-1-2(8)3(9)4(10)5(11)6(12)13/h2-4,7-10H,1H2,(H,12,13)/t2-,3+,4-/m0/s1
(5)Std. InChIKey: VBUYCZFBVCCYFD-NUNKFHFFSA-N

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