Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2005-11-16 15:48:42 UTC |
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Update Date | 2023-02-21 17:15:42 UTC |
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HMDB ID | HMDB0001430 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | L-Dopachrome |
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Description | Dopachrome is a cyclization product of L-DOPA and is an intermediate in the biosynthesis of melanin. Dopaquinone has an ortho-quinone ring, which is known to be neurotoxic and highly reactive with many other compounds (PMID: 413870 ). Dopachrome spontaneously gives rise to 5,6-dihydroxyindole (DHI) or it can be enzymatically metabolized by dopachrome tautomerase to give 5,6-dihydroxyindole-2-carboxylic acid (DHICA). DHI and its oxidation products are also toxic to cells. Many Parkinson's patients are treated with L-DOPA. However, long-term treatment with L-DOPA may actually worsen symptoms or may result in neurotic and psychotic symptoms. These may be due to dopachrome and dopaquinone accumulating in the brain of L-DOPA treated patients (PMID: 19131041 , PMID: 12373519 ). |
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Structure | OC(=O)[C@@H]1CC2=CC(=O)C(=O)C=C2N1 InChI=1S/C9H7NO4/c11-7-2-4-1-6(9(13)14)10-5(4)3-8(7)12/h2-3,6,10H,1H2,(H,13,14)/t6-/m0/s1 |
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Synonyms | Value | Source |
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2-L-Carboxy-2,3-dihydroindole-5,6-quinone | ChEBI | (2S)-2,3,5,6-Tetrahydro-5,6-dioxo-1H-indole-2-carboxylic acid | HMDB | (2S)-5,6-Dioxo-2,3,5,6-tetrahydro-1H-indole-2-carboxylic acid | HMDB | L-Dopachrome | HMDB |
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Chemical Formula | C9H7NO4 |
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Average Molecular Weight | 193.158 |
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Monoisotopic Molecular Weight | 193.037507709 |
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IUPAC Name | (2S)-5,6-dioxo-2,3,5,6-tetrahydro-1H-indole-2-carboxylic acid |
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Traditional Name | L-dopachrome |
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CAS Registry Number | 89762-39-0 |
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SMILES | OC(=O)[C@@H]1CC2=CC(=O)C(=O)C=C2N1 |
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InChI Identifier | InChI=1S/C9H7NO4/c11-7-2-4-1-6(9(13)14)10-5(4)3-8(7)12/h2-3,6,10H,1H2,(H,13,14)/t6-/m0/s1 |
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InChI Key | VJNCICVKUHKIIV-LURJTMIESA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom. |
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Kingdom | Organic compounds |
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Super Class | Organic acids and derivatives |
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Class | Carboxylic acids and derivatives |
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Sub Class | Amino acids, peptides, and analogues |
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Direct Parent | L-alpha-amino acids |
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Alternative Parents | |
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Substituents | - L-alpha-amino acid
- Indole or derivatives
- Dihydroindole
- Pyrrolidine carboxylic acid
- Pyrrolidine carboxylic acid or derivatives
- Pyrrolidine
- Vinylogous amide
- Amino acid
- Ketone
- Cyclic ketone
- Carboxylic acid
- Secondary aliphatic amine
- Enamine
- Monocarboxylic acid or derivatives
- Azacycle
- Secondary amine
- Organoheterocyclic compound
- Organic oxide
- Organopnictogen compound
- Organic oxygen compound
- Organonitrogen compound
- Organooxygen compound
- Amine
- Hydrocarbon derivative
- Carbonyl group
- Organic nitrogen compound
- Aliphatic heteropolycyclic compound
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Molecular Framework | Aliphatic heteropolycyclic compounds |
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External Descriptors | |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | |
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Role | Not Available |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | Property | Value | Reference |
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Melting Point | Not Available | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | Not Available | Not Available | LogP | Not Available | Not Available |
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Experimental Chromatographic Properties | Not Available |
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Predicted Molecular Properties | |
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Kovats Retention IndicesUnderivatizedDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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L-Dopachrome,1TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@@H]1CC2=CC(=O)C(=O)C=C2N1 | 2148.2 | Semi standard non polar | 33892256 | L-Dopachrome,1TMS,isomer #2 | C[Si](C)(C)N1C2=CC(=O)C(=O)C=C2C[C@H]1C(=O)O | 2208.2 | Semi standard non polar | 33892256 | L-Dopachrome,2TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@@H]1CC2=CC(=O)C(=O)C=C2N1[Si](C)(C)C | 2204.9 | Semi standard non polar | 33892256 | L-Dopachrome,2TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@@H]1CC2=CC(=O)C(=O)C=C2N1[Si](C)(C)C | 1933.8 | Standard non polar | 33892256 | L-Dopachrome,2TMS,isomer #1 | C[Si](C)(C)OC(=O)[C@@H]1CC2=CC(=O)C(=O)C=C2N1[Si](C)(C)C | 3214.0 | Standard polar | 33892256 | L-Dopachrome,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@@H]1CC2=CC(=O)C(=O)C=C2N1 | 2399.8 | Semi standard non polar | 33892256 | L-Dopachrome,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N1C2=CC(=O)C(=O)C=C2C[C@H]1C(=O)O | 2455.4 | Semi standard non polar | 33892256 | L-Dopachrome,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@@H]1CC2=CC(=O)C(=O)C=C2N1[Si](C)(C)C(C)(C)C | 2665.8 | Semi standard non polar | 33892256 | L-Dopachrome,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@@H]1CC2=CC(=O)C(=O)C=C2N1[Si](C)(C)C(C)(C)C | 2361.6 | Standard non polar | 33892256 | L-Dopachrome,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)[C@@H]1CC2=CC(=O)C(=O)C=C2N1[Si](C)(C)C(C)(C)C | 3349.0 | Standard polar | 33892256 |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - L-Dopachrome GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 10V, Positive-QTOF | splash10-002f-0900000000-7d241073b22105a8fd50 | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 20V, Positive-QTOF | splash10-0002-0900000000-323f4bcd8528fb467c2b | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 40V, Positive-QTOF | splash10-00ba-7900000000-13c63b10c546db28b452 | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 10V, Negative-QTOF | splash10-0006-0900000000-7278b78e7703333d1049 | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 20V, Negative-QTOF | splash10-006w-0900000000-37fa92b16a4a5557156c | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 40V, Negative-QTOF | splash10-006w-2900000000-a811e0992f3245b7b855 | 2019-02-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 10V, Negative-QTOF | splash10-0006-0900000000-becbc589150d5f7b8591 | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 20V, Negative-QTOF | splash10-0002-0900000000-96e2a94dd742e6e1937c | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 40V, Negative-QTOF | splash10-006w-1900000000-1956f467b1b38dab6842 | 2021-09-23 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 10V, Positive-QTOF | splash10-0006-0900000000-ae6d437a06113eb43338 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 20V, Positive-QTOF | splash10-004m-0900000000-5329f1d5b80270050bbb | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - L-Dopachrome 40V, Positive-QTOF | splash10-006y-8900000000-bfc43ab0afc8b1b28daf | 2021-09-24 | Wishart Lab | View Spectrum |
IR SpectraSpectrum Type | Description | Deposition Date | Source | View |
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Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-) | 2023-02-03 | FELIX lab | View Spectrum | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+) | 2023-02-03 | FELIX lab | View Spectrum | Predicted IR Spectrum | IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+) | 2023-02-03 | FELIX lab | View Spectrum |
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General References | - Pak BJ, Li Q, Kerbel RS, Ben-David Y: TYRP2-mediated resistance to cis-diamminedichloroplatinum (II) in human melanoma cells is independent of tyrosinase and TYRP1 expression and melanin content. Melanoma Res. 2000 Oct;10(5):499-505. [PubMed:11095412 ]
- Graham DG, Tiffany SM, Vogel FS: The toxicity of melanin precursors. J Invest Dermatol. 1978 Feb;70(2):113-6. [PubMed:413870 ]
- Hattoria N, Wanga M, Taka H, Fujimura T, Yoritaka A, Kubo S, Mochizuki H: Toxic effects of dopamine metabolism in Parkinson's disease. Parkinsonism Relat Disord. 2009 Jan;15 Suppl 1:S35-8. doi: 10.1016/S1353-8020(09)70010-0. [PubMed:19131041 ]
- Kostrzewa RM, Kostrzewa JP, Brus R: Neuroprotective and neurotoxic roles of levodopa (L-DOPA) in neurodegenerative disorders relating to Parkinson's disease. Amino Acids. 2002;23(1-3):57-63. doi: 10.1007/s00726-001-0110-x. [PubMed:12373519 ]
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