ContaminantDB: 2-Methylcitric acid

Identification Taxonomy Biological Properties Physical Properties Toxicity Profile Spectra Concentrations Links References XML

Record Information

Version

1.0

Creation Date

2014-08-29 06:51:14 UTC

Update Date

2026-04-06 13:58:54 UTC

Accession Number

CHEM003388

Identification

Common Name

2-Methylcitric acid

Class

Small Molecule

Description

Methylcitric acid (MCA) is elevated in body fluids of patients with propionic acidaemia (PA; OMIM 232000, 232050), methylmalonic aciduria (MMA; OMIM 251000, 251120) and multiple carboxylase deficiency (OMIM 253260, 253270). MCA is formed by condensation of accumulated propionyl- CoA and oxalacetate by the enzyme si-citrate synthase (EC 4.1.3.7). MCA molecule has two stereogenic centers so that it can occur in the form of four stereoisomers. Only two stereoisomers of MCA, (2S, 3S) and (2R, 3S), were found in human urine. (1).

Contaminant Sources

FooDB Chemicals
HMDB Contaminants - Urine
T3DB toxins

Contaminant Type

Animal Toxin
Food Toxin
Metabolite
Natural Compound
Organic Compound

Chemical Structure

MOL SDF PDB SMILES InChI

Synonyms

Value	Source
2-Hydroxy-1,2,3-butanetricarboxylic acid	ChEBI
2-Hydroxy-1,2,3-butanetricarboxylate	Generator
2-Methylcitrate	Generator
(2S,3S)-2-Methylcitrate	HMDB
2-Hydroxybutane-1,2,3-tricarboxylate	HMDB
2-Hydroxybutane-1,2,3-tricarboxylic acid	HMDB
2-Methylcitric acid, 3H-labeled	HMDB
3-Carboxy-3-hydroxy-2-methylpentanedioic acid	HMDB
Methylcitric acid	HMDB

Chemical Formula

C₇H₁₀O₇

Average Molecular Mass

206.150 g/mol

Monoisotopic Mass

206.043 g/mol

CAS Registry Number

6061-96-7

IUPAC Name

Not Available

Traditional Name

methylcitric acid

SMILES

CC(C(O)=O)C(O)(CC(O)=O)C(O)=O

InChI Identifier

InChI=1S/C7H10O7/c1-3(5(10)11)7(14,6(12)13)2-4(8)9/h3,14H,2H2,1H3,(H,8,9)(H,10,11)(H,12,13)

InChI Key

YNOXCRMFGMSKIJ-UHFFFAOYSA-N

Chemical Taxonomy

Description

belongs to the class of organic compounds known as tricarboxylic acids and derivatives. These are carboxylic acids containing exactly three carboxyl groups.

Kingdom

Organic compounds

Super Class

Organic acids and derivatives

Class

Carboxylic acids and derivatives

Sub Class

Tricarboxylic acids and derivatives

Direct Parent

Tricarboxylic acids and derivatives

Alternative Parents

Substituents

Tricarboxylic acid or derivatives
Hydroxy acid
Alpha-hydroxy acid
Tertiary alcohol
Carboxylic acid
Organic oxygen compound
Organic oxide
Hydrocarbon derivative
Organooxygen compound
Carbonyl group
Alcohol
Aliphatic acyclic compound

Molecular Framework

Aliphatic acyclic compounds

External Descriptors

tricarboxylic acid (CHEBI:30835 )

Biological Properties

Status

Detected and Not Quantified

Origin

Endogenous

Cellular Locations

Cytoplasm
Extracellular

Biofluid Locations

Not Available

Tissue Locations

Not Available

Pathways

Name	SMPDB Link	KEGG Link
Methylmalonic Aciduria Due to Cobalamin-Related Disorders	SMP00201	Not Available
Propionic Acidemia	SMP00236	Not Available

Applications

Not Available

Biological Roles

Not Available

Chemical Roles

Not Available

Physical Properties

State

Solid

Appearance

White powder.

Experimental Properties

Property	Value
Melting Point	Not Available
Boiling Point	Not Available
Solubility	Not Available

Predicted Properties

Property	Value	Source
Water Solubility	175 g/L	ALOGPS
logP	-0.89	ALOGPS
logP	-0.78	ChemAxon
logS	-0.07	ALOGPS
pKa (Strongest Acidic)	3.18	ChemAxon
pKa (Strongest Basic)	-4.3	ChemAxon
Physiological Charge	-3	ChemAxon
Hydrogen Acceptor Count	7	ChemAxon
Hydrogen Donor Count	4	ChemAxon
Polar Surface Area	132.13 Å²	ChemAxon
Rotatable Bond Count	5	ChemAxon
Refractivity	40.2 m³·mol⁻¹	ChemAxon
Polarizability	17.21 Å³	ChemAxon
Number of Rings	0	ChemAxon
Bioavailability	1	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	No	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	View
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	splash10-0hhi-3900000000-c705fb286a4c575f9852	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (4 TMS) - 70eV, Positive	splash10-00b9-8029800000-dc9ef9d5a5a220f1ae9f	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_1) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_2) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_3) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_1_4) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_2_1) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_2_2) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_2_3) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_2_4) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_2_5) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_2_6) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_3_1) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_3_2) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_3_3) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TMS_3_4) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_1_2) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_1_3) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_1_4) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_2_1) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_2_2) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_2_3) - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (TBDMS_2_4) - 70eV, Positive	Not Available	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-000i-0900000000-be0da5c29220e9e50325	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-05i0-9600000000-2bead66ba2514df6497f	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-1093-7900000000-e7a5530b8562d859e032	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-0900-1910000000-0a84eb8e0df2e6eb450d	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-07vi-4900000000-e89ea7de4d7e433cae1e	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-0a4i-9300000000-c68ffdf8bf6f5380005e	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-0ab9-9720000000-dfe31f5432e1eccb8ed3	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-0a4i-9100000000-1cfd78c68dd469eef744	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-0a4i-9000000000-21ac8232326ad1ff9cb4	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-0cdu-0920000000-84f91e237b14a40e1dd3	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-014i-1900000000-6f38bc0fc7fc8a824600	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-00ku-9400000000-2c55ccaee8c29d5510a8	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum

Toxicity Profile

Route of Exposure

Not Available

Mechanism of Toxicity

Not Available

Metabolism

Not Available

Toxicity Values

Not Available

Lethal Dose

Not Available

Carcinogenicity (IARC Classification)

No indication of carcinogenicity to humans (not listed by IARC).

Uses/Sources

This is an endogenously produced metabolite found in the human body. It is used in metabolic reactions, catabolic reactions or waste generation.

Minimum Risk Level

Not Available

Health Effects

Not Available

Symptoms

Not Available

Treatment

Not Available

Concentrations

Not Available

External Links

DrugBank ID

Not Available

HMDB ID

HMDB0000379

FooDB ID

FDB021997

Phenol Explorer ID

Not Available

KNApSAcK ID

Not Available

BiGG ID

39369

BioCyc ID

Not Available

METLIN ID

5368

PDB ID

Not Available

Wikipedia Link

Not Available

Chemspider ID

500

ChEBI ID

30835

PubChem Compound ID

515

Kegg Compound ID

Not Available

YMDB ID

Not Available

ECMDB ID

ECMDB24046

References

Synthesis Reference

Ewering, Christian; Braemer, Christian Oliver; Steinbuechel, Alexander. Production of 2-methylcitric acid by a recombinant Ralstonia eutropha strain. PCT Int. Appl. (2007), 30pp. CODEN: PIXXD2 WO 2007101866 A2 20070913 CAN 147:363646 AN 2007:1033111

MSDS

Link

General References

1. Ewering, Christian; Braemer, Christian Oliver; Steinbuechel, Alexander. Production of 2-methylcitric acid by a recombinant Ralstonia eutropha strain. PCT Int. Appl. (2007), 30pp. CODEN: PIXXD2 WO 2007101866 A2 20070913 CAN 147:363646 AN 2007:1033111

2. Guneral F, Bachmann C: Age-related reference values for urinary organic acids in a healthy Turkish pediatric population. Clin Chem. 1994 Jun;40(6):862-6.

3. Busch M, Stein G, Poppitz W, Hein G, Muller A: Validated capillary gas chromatographic-mass spectrometric assay to determine 2-methylcitric acid I and II levels in human serum by using a pulsed splitless injection procedure. J Chromatogr B Analyt Technol Biomed Life Sci. 2002 Aug 5;775(2):215-23.

4. Allen RH, Stabler SP, Savage DG, Lindenbaum J: Elevation of 2-methylcitric acid I and II levels in serum, urine, and cerebrospinal fluid of patients with cobalamin deficiency. Metabolism. 1993 Aug;42(8):978-88.

5. Bergstrom T, Greter J, Levin AH, Steen G, Tryding N, Wass U: Propionyl-CoA carboxylase deficiency: case report, effect of low-protein diet and identification of 3-oxo-2-methylvaleric acid 3-hydroxy-2-methylvaleric acid, and maleic acid in urine. Scand J Clin Lab Invest. 1981 Apr;41(2):117-26.

6. Thompson GN, Chalmers RA: Increased urinary metabolite excretion during fasting in disorders of propionate metabolism. Pediatr Res. 1990 Apr;27(4 Pt 1):413-6.

7. Krawczyk H, Gradowska W: 1H NMR spectra of methylcitric acid in urine. J Inherit Metab Dis. 2007 Apr;30(2):263. Epub 2007 Feb 14.

8. Elshenawy S, Pinney SE, Stuart T, Doulias PT, Zura G, Parry S, Elovitz MA, Bennett MJ, Bansal A, Strauss JF 3rd, Ischiropoulos H, Simmons RA: The Metabolomic Signature of the Placenta in Spontaneous Preterm Birth. Int J Mol Sci. 2020 Feb 4;21(3). pii: ijms21031043. doi: 10.3390/ijms21031043.

2-Methylcitric acid (CHEM003388)

Structure for CHEM003388: 2-Methylcitric acid