Record Information |
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Version | 2.0 |
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Created at | 2005-11-16 15:48:42 UTC |
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Updated at | 2020-11-24 22:22:25 UTC |
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NP-MRD ID | NP0001309 |
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Secondary Accession Numbers | None |
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Natural Product Identification |
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Common Name | Ethylmalonic acid |
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Description | Ethylmalonic acid, also known as alpha-carboxybutyric acid or ethylmalonate, is a member of the class of compounds known as branched fatty acids. Branched fatty acids are fatty acids containing one or more branched chains. Ethylmalonic acid is soluble (in water) and a moderately acidic compound (based on its pKa). Ethylmalonic acid can be synthesized from malonic acid, and can be synthesized into (S)-ethylmalonyl-CoA and (R)-ethylmalonyl-CoA. Ethylmalonic acid can be found in blood, cerebrospinal fluid (CSF), and urine, as well as in human fibroblasts, prostate, and skeletal muscle tissues. Moreover, ethylmalonic acid is found to be associated with anorexia nervosa and malonyl-CoA decarboxylase deficiency. Ethylmalonic acid is a non-carcinogenic (not listed by IARC) potentially toxic compound. Chronically high levels of ethylmalonic acid are associated with at least two inborn errors of metabolism, including short chain acyl CoA dehydrogenase deficiency (SCAD deficiency) and ethylmalonic encephalopathy. Ethylmalonic acid is identified in the urine of patients with short-chain acyl-coenzyme A dehydrogenase deficiency, which is a fatty acid metabolism disorder. When present in sufficiently high levels, ethylmalonic acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Ethylmalonic acid is an organic acid. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart abnormalities, kidney abnormalities, liver damage, seizures, coma, and possibly death. These are also the characteristic symptoms of the untreated IEMs mentioned above. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. |
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Structure | InChI=1S/C5H8O4/c1-2-3(4(6)7)5(8)9/h3H,2H2,1H3,(H,6,7)(H,8,9) |
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Synonyms | Value | Source |
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1,1-Propanedicarboxylic acid | ChEBI | 2-Ethylmalonic acid | ChEBI | alpha-Carboxybutyric acid | ChEBI | 1,1-Propanedicarboxylate | Generator | 2-Ethylmalonate | Generator | a-Carboxybutyrate | Generator | a-Carboxybutyric acid | Generator | alpha-Carboxybutyrate | Generator | Α-carboxybutyrate | Generator | Α-carboxybutyric acid | Generator | Ethylmalonate | Generator | Ethyl-malonic acid | HMDB | 2-Ethylpropanedioic acid | HMDB | Ethylmalonic acid | HMDB |
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Chemical Formula | C5H8O4 |
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Average Mass | 132.1146 Da |
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Monoisotopic Mass | 132.04226 Da |
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IUPAC Name | 2-ethylpropanedioic acid |
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Traditional Name | ethylmalonic acid |
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CAS Registry Number | 601-75-2 |
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SMILES | CCC(C(O)=O)C(O)=O |
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InChI Identifier | InChI=1S/C5H8O4/c1-2-3(4(6)7)5(8)9/h3H,2H2,1H3,(H,6,7)(H,8,9) |
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InChI Key | UKFXDFUAPNAMPJ-UHFFFAOYSA-N |
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Experimental Spectra |
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| Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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1D NMR | 1H NMR Spectrum (1D, 600 MHz, H2O, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| Predicted Spectra |
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| Not Available | Chemical Shift Submissions |
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| Not Available | Species |
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Species of Origin | |
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Species Where Detected | |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as branched fatty acids. These are fatty acids containing a branched chain. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Fatty Acyls |
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Sub Class | Fatty acids and conjugates |
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Direct Parent | Branched fatty acids |
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Alternative Parents | |
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Substituents | - Branched fatty acid
- 1,3-dicarbonyl compound
- Dicarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Aliphatic acyclic compound
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Molecular Framework | Aliphatic acyclic compounds |
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External Descriptors | |
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Physical Properties |
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State | Solid |
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Experimental Properties | Property | Value | Reference |
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Melting Point | 112 - 114 °C | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | 712 mg/mL | Not Available | LogP | Not Available | Not Available |
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Predicted Properties | |
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General References | - Tiranti V, D'Adamo P, Briem E, Ferrari G, Mineri R, Lamantea E, Mandel H, Balestri P, Garcia-Silva MT, Vollmer B, Rinaldo P, Hahn SH, Leonard J, Rahman S, Dionisi-Vici C, Garavaglia B, Gasparini P, Zeviani M: Ethylmalonic encephalopathy is caused by mutations in ETHE1, a gene encoding a mitochondrial matrix protein. Am J Hum Genet. 2004 Feb;74(2):239-52. Epub 2004 Jan 19. [PubMed:14732903 ]
- McGowan KA, Nyhan WL, Barshop BA, Naviaux RK, Yu A, Haas RH, Townsend JJ: The role of methionine in ethylmalonic encephalopathy with petechiae. Arch Neurol. 2004 Apr;61(4):570-4. [PubMed:15096407 ]
- Birkebaek NH, Simonsen H, Gregersen N: Hypoglycaemia and elevated urine ethylmalonic acid in a child homozygous for the short-chain acyl-CoA dehydrogenase 625G > A gene variation. Acta Paediatr. 2002;91(4):480-2. [PubMed:12061367 ]
- Tanaka K, Ramsdell HS, Baretz BH, Keefe MB, Kean EA, Johnson B: Identification of ethylmalonic acid in urine of two patients with the vomitting sickness of Jamaica. Clin Chim Acta. 1976 May 17;69(1):105-12. [PubMed:1269146 ]
- Bhala A, Willi SM, Rinaldo P, Bennett MJ, Schmidt-Sommerfeld E, Hale DE: Clinical and biochemical characterization of short-chain acyl-coenzyme A dehydrogenase deficiency. J Pediatr. 1995 Jun;126(6):910-5. [PubMed:7776094 ]
- Bok LA, Vreken P, Wijburg FA, Wanders RJ, Gregersen N, Corydon MJ, Waterham HR, Duran M: Short-chain Acyl-CoA dehydrogenase deficiency: studies in a large family adding to the complexity of the disorder. Pediatrics. 2003 Nov;112(5):1152-5. [PubMed:14595061 ]
- Barschak AG, Ferreira Gda C, Andre KR, Schuck PF, Viegas CM, Tonin A, Dutra Filho CS, Wyse AT, Wannmacher CM, Vargas CR, Wajner M: Inhibition of the electron transport chain and creatine kinase activity by ethylmalonic acid in human skeletal muscle. Metab Brain Dis. 2006 Mar;21(1):11-9. Epub 2006 Apr 28. [PubMed:16773466 ]
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