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Details

Stereochemistry ABSOLUTE
Molecular Formula C6H10O7
Molecular Weight 194.1394
Optical Activity UNSPECIFIED
Defined Stereocenters 3 / 3
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of 2-KETO-L-GULONIC ACID

SMILES

OC[C@H](O)[C@@H](O)[C@H](O)C(=O)C(O)=O

InChI

InChIKey=VBUYCZFBVCCYFD-NUNKFHFFSA-N
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

HIDE SMILES / InChI

Molecular Formula C6H10O7
Molecular Weight 194.1394
Charge 0
Count
Stereochemistry ABSOLUTE
Additional Stereochemistry No
Defined Stereocenters 3 / 3
E/Z Centers 0
Optical Activity UNSPECIFIED

2-keto-L-gulonic acid (2-KLG) is a direct precursor (lactone) of L-ascorbic acid (vitamin C). 2-Keto-L-gulonic Acid is used in biological studies for the formation of sorbitol metabolism by Acetobacter melanogenus. Ketogulonigenium vulgare has long been used in industry to produce 2-keto-L-gulonic acid (2KGA).

Approval Year

Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
PubMed

PubMed

TitleDatePubMed
The human D-glucuronyl C5-epimerase gene is transcriptionally activated through the beta-catenin-TCF4 pathway.
2005-09-01
Developmental expression and function of aldehyde reductase in proximal tubules of the kidney.
2005-07
Up-regulation of human myo-inositol oxygenase by hyperosmotic stress in renal proximal tubular epithelial cells.
2005-05-20
Dynamic simulation of red blood cell metabolism and its application to the analysis of a pathological condition.
2005-05-09
Cryptococcus taeanensis sp. nov., a new anamorphic basidiomycetous yeast isolated from a salt farm.
2005-05
Investigating hookworm genomes by comparative analysis of two Ancylostoma species.
2005-04-26
Modulation of the heparanase-inhibiting activity of heparin through selective desulfation, graded N-acetylation, and glycol splitting.
2005-04-01
Purification and characterization of a novel alpha-glucuronidase from Aspergillus niger specific for O-alpha-D-glucosyluronic acid alpha-D-glucosiduronic acid.
2005-03
Candida digboiensis sp. nov., a novel anamorphic yeast species from an acidic tar sludge-contaminated oilfield.
2005-03
Conjugated bilirubin measurements in Gilbert's syndrome: method dependence.
2005-01
Immunologic roles of hyaluronan.
2005
Design and synthesis of dimeric heparinoid mimetics.
2004-12-24
Structural and functional characterization of oversulfated chondroitin sulfate/dermatan sulfate hybrid chains from the notochord of hagfish. Neuritogenic and binding activities for growth factors and neurotrophic factors.
2004-12-03
Effect of matrix depleting agents on the expression of chondrocyte metabolism by equine chondrocytes.
2004-12
Molecular cloning, expression, and characterization of myo-inositol oxygenase from mouse, rat, and human kidney.
2004-11-26
Evidence for multiple glucuronide transporters in rat liver microsomes.
2004-10-01
Purification of the Escherichia coli K5 capsular polysaccharide and use of high-performance capillary electrophoresis to qualitative and quantitative monitor the process.
2004-10
A spectrophotometric assay of D-glucuronate based on Escherichia coli uronate isomerase and mannonate dehydrogenase.
2004-10
Crystallization and preliminary X-ray analysis of heparinase II from Pedobacter heparinus.
2004-09
Cytokine gene expression and production by human LPS-stimulated mononuclear cells are inhibited by sulfated heparin-like semi-synthetic derivatives.
2004-09
Pharmacokinetics and metabolism of dietary flavonoids in humans.
2004-08
Crystal structure of unsaturated glucuronyl hydrolase, responsible for the degradation of glycosaminoglycan, from Bacillus sp. GL1 at 1.8 A resolution.
2004-07-23
Free fatty acids increase hepatic glycogen content in obese males.
2004-07
Glycosaminoglycans and proteoglycans in normal mitral valve leaflets and chordae: association with regions of tensile and compressive loading.
2004-07
Cumulus expansion, nuclear maturation and connexin 43, cyclooxygenase-2 and FSH receptor mRNA expression in equine cumulus-oocyte complexes cultured in vitro in the presence of FSH and precursors for hyaluronic acid synthesis.
2004-06-22
Interleukin-1beta represses MRP2 gene expression through inactivation of interferon regulatory factor 3 in HepG2 cells.
2004-06
Carbon nutrition of Escherichia coli in the mouse intestine.
2004-05-11
Irreversible glucuronyl C5-epimerization in the biosynthesis of heparan sulfate.
2004-04-09
Identification and functional characterization of the natural variant MRP3-Arg1297His of human multidrug resistance protein 3 (MRP3/ABCC3).
2004-04
High-resolution crystal structure of Arthrobacter aurescens chondroitin AC lyase: an enzyme-substrate complex defines the catalytic mechanism.
2004-03-19
Novel efficient routes to heparin monosaccharides and disaccharides achieved via regio- and stereoselective glycosidation.
2004-03-04
Synthesis of novel D-glucuronic acid fatty esters using Candida antarctica lipase in tert-butanol.
2004-03
Design, synthesis, and evaluation of a liposaccharide drug delivery agent: application to the gastrointestinal absorption of gentamicin.
2004-02-26
Pharmacokinetics in mice and growth-inhibitory properties of the putative cancer chemopreventive agent resveratrol and the synthetic analogue trans 3,4,5,4'-tetramethoxystilbene.
2004-02-09
Excretion of fluorescent substrates of mammalian multidrug resistance-associated protein (MRP) in the Schistosoma mansoni excretory system.
2004-01
Expression and immunolocalization of the multidrug resistance proteins, MRP1-MRP6 (ABCC1-ABCC6), in human brain.
2004
Analysis of reducing carbohydrates by reductive tryptamine derivatization prior to micellar electrokinetic capillary chromatography.
2003-12-03
The structure of the glycopeptides from the fish pathogen Flavobacterium columnare.
2003-11-14
PathMAPA: a tool for displaying gene expression and performing statistical tests on metabolic pathways at multiple levels for Arabidopsis.
2003-11-07
Crystal structure of uronate isomerase (TM0064) from Thermotoga maritima at 2.85 A resolution.
2003-10-01
Rapid stimulation of free glucuronate formation by non-glucuronidable xenobiotics in isolated rat hepatocytes.
2003-09-19
Structure of the O-polysaccharide of Proteus vulgaris O44: a new O-antigen that contains an amide of D-glucuronic acid with L-alanine.
2003-06-23
Specificity of yeast (Saccharomyces cerevisiae) in removing carbohydrates by fermentation.
2003-05-01
Structural analysis of the carbohydrate backbone of Vibrio parahaemolyticus O2 lipopolysaccharides.
2003-05-01
Cryptococcus nemorosus sp. nov. and Cryptococcus perniciosus sp. nov., related to Papiliotrema Sampaio et al. (Tremellales).
2003-05
Multidrug resistance-associated proteins: Export pumps for conjugates with glutathione, glucuronate or sulfate.
2003
CD44 in rheumatoid arthritis.
2003
Intra-articular hyaluronan (hyaluronic acid) and hylans for the treatment of osteoarthritis: mechanisms of action.
2003
A marine strain of flavobacteriaceae utilizes brown seaweed fucoidan.
2002-09
Bacterial polysaccharides as vaccines--immunity and chemical characterization.
2001
Patents

Sample Use Guides

Rats which excreted daily 0.9 = 0.02 mg of L-ascorbic acid. received by intraperitoneal injection 90 mg of 2-keto-L-gulonic acid and a week later 90 mg of methyl 2-keto-L-gulonate.
Route of Administration: Intraperitoneal
In Vitro Use Guide
Unknown
Substance Class Chemical
Created
by admin
on Mon Mar 31 19:36:10 GMT 2025
Edited
by admin
on Mon Mar 31 19:36:10 GMT 2025
Record UNII
I49386U15C
Record Status Validated (UNII)
Record Version
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Name Type Language
2-KETO-L-GULONIC ACID
MI  
Common Name English
2-KETO-L-GULONIC ACID [MI]
Preferred Name English
2-OXO-L-GULONIC ACID
Common Name English
L-SORBOSONIC ACID
Common Name English
L-XYLO-HEX-2-ULOSONIC ACID
Systematic Name English
ASCORBIC ACID IMPURITY C [EP IMPURITY]
Common Name English
L-XYLO-2-HEXULOSONIC ACID
Common Name English
Code System Code Type Description
CHEBI
19543
Created by admin on Mon Mar 31 19:36:10 GMT 2025 , Edited by admin on Mon Mar 31 19:36:10 GMT 2025
PRIMARY
PUBCHEM
102424
Created by admin on Mon Mar 31 19:36:10 GMT 2025 , Edited by admin on Mon Mar 31 19:36:10 GMT 2025
PRIMARY
CHEBI
16808
Created by admin on Mon Mar 31 19:36:10 GMT 2025 , Edited by admin on Mon Mar 31 19:36:10 GMT 2025
PRIMARY
EPA CompTox
DTXSID901031512
Created by admin on Mon Mar 31 19:36:10 GMT 2025 , Edited by admin on Mon Mar 31 19:36:10 GMT 2025
PRIMARY
MERCK INDEX
m6621
Created by admin on Mon Mar 31 19:36:10 GMT 2025 , Edited by admin on Mon Mar 31 19:36:10 GMT 2025
PRIMARY Merck Index
CAS
526-98-7
Created by admin on Mon Mar 31 19:36:10 GMT 2025 , Edited by admin on Mon Mar 31 19:36:10 GMT 2025
PRIMARY
RXCUI
1869045
Created by admin on Mon Mar 31 19:36:10 GMT 2025 , Edited by admin on Mon Mar 31 19:36:10 GMT 2025
PRIMARY
ECHA (EC/EINECS)
208-403-5
Created by admin on Mon Mar 31 19:36:10 GMT 2025 , Edited by admin on Mon Mar 31 19:36:10 GMT 2025
PRIMARY
FDA UNII
I49386U15C
Created by admin on Mon Mar 31 19:36:10 GMT 2025 , Edited by admin on Mon Mar 31 19:36:10 GMT 2025
PRIMARY
Related Record Type Details
PARENT -> IMPURITY
PARENT -> IMPURITY
CHROMATOGRAPHIC PURITY (HPLC/UV)
EP