| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2012-09-11 17:36:48 UTC |
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| Update Date | 2022-03-07 02:52:33 UTC |
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| HMDB ID | HMDB0030441 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Okadaic acid |
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| Description | Okadaic acid is found in mollusks. Okadaic acid is found in the marine sponges Halichondria okadai and Halichondria melanodocia and shellfish. It is a metabolite of Prorocentrum lima. It is a diarrhetic shellfish toxin. Okadaic acid is a toxin that accumulates in bivalves and causes diarrhetic shellfish poisoning. The molecular formula of okadaic acid, which is a derivative of a C38 fatty acid, is C44H68O13. The IUPAC name of okadaic acid is (2R)-2-hydroxy-3-{(2S,5R,6R,8S)-5-hydroxy-[(1R,2E)-3-((2R,5R,6'S,8'R,8a'S)-8'-hydroxy-6'-{(1S,3S)-1-hydroxy-3-[(3R,6S)-3-methyl-1,7-dioxaspiro[5.5]undec-2-yl]butyl}-7'-methyleneoctahydro-3H,3'H-spiro[furan-2,2'-pyrano[3,2-b]pyran]-5-yl)-1-methylprop-2-en-1-yl]-10-methyl-1,7-dioxaspiro[5.5]undec-10-en-2-yl}-2-methylpropanoic acid. Okadaic acid was named from the marine sponge Halichondria okadai, from which okadaic acid was isolated for the first time. It has also been isolated from another marine sponge, H. malanodocia, as a cytotoxin. The real producer of okadaic acid is a marine dinoflagellate |
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| Structure | CC(CC(O)C1OC2CCC3(CCC(O3)\C=C\C(C)C3CC(C)=CC4(OC(CC(C)(O)C(O)=O)CCC4O)O3)OC2C(O)C1=C)C1OC2(CCCCO2)CCC1C InChI=1S/C44H68O13/c1-25-21-34(55-44(23-25)35(46)12-11-31(54-44)24-41(6,50)40(48)49)26(2)9-10-30-14-18-43(53-30)19-15-33-39(57-43)36(47)29(5)38(52-33)32(45)22-28(4)37-27(3)13-17-42(56-37)16-7-8-20-51-42/h9-10,23,26-28,30-39,45-47,50H,5,7-8,11-22,24H2,1-4,6H3,(H,48,49)/b10-9+ |
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| Synonyms | | Value | Source |
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| Okadaate | Generator | | 9,10-Deepithio-9,10-didehydroacanthifolicin | HMDB | | PL Toxin II | HMDB | | 2-Hydroxy-3-{5-hydroxy-8-[(3E)-4-[8'-hydroxy-6'-(1-hydroxy-3-{3-methyl-1,7-dioxaspiro[5.5]undecan-2-yl}butyl)-7'-methylidene-hexahydro-3'H-spiro[oxolane-2,2'-pyrano[3,2-b]pyran]-5-yl]but-3-en-2-yl]-10-methyl-1,7-dioxaspiro[5.5]undec-10-en-2-yl}-2-methylpropanoate | HMDB | | Acid, ocadaic | HMDB | | Acid, okadaic | HMDB | | Ocadaic acid | HMDB | | Okadaic acid | MeSH |
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| Chemical Formula | C44H68O13 |
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| Average Molecular Weight | 805.0029 |
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| Monoisotopic Molecular Weight | 804.465992262 |
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| IUPAC Name | 2-hydroxy-3-{5-hydroxy-8-[(3E)-4-[8'-hydroxy-6'-(1-hydroxy-3-{3-methyl-1,7-dioxaspiro[5.5]undecan-2-yl}butyl)-7'-methylidene-hexahydro-3'H-spiro[oxolane-2,2'-pyrano[3,2-b]pyran]-5-yl]but-3-en-2-yl]-10-methyl-1,7-dioxaspiro[5.5]undec-10-en-2-yl}-2-methylpropanoic acid |
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| Traditional Name | 2-hydroxy-3-{5-hydroxy-8-[(3E)-4-[8'-hydroxy-6'-(1-hydroxy-3-{3-methyl-1,7-dioxaspiro[5.5]undecan-2-yl}butyl)-7'-methylidene-hexahydrospiro[oxolane-2,2'-pyrano[3,2-b]pyran]-5-yl]but-3-en-2-yl]-10-methyl-1,7-dioxaspiro[5.5]undec-10-en-2-yl}-2-methylpropanoic acid |
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| CAS Registry Number | 78111-17-8 |
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| SMILES | CC(CC(O)C1OC2CCC3(CCC(O3)\C=C\C(C)C3CC(C)=CC4(OC(CC(C)(O)C(O)=O)CCC4O)O3)OC2C(O)C1=C)C1OC2(CCCCO2)CCC1C |
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| InChI Identifier | InChI=1S/C44H68O13/c1-25-21-34(55-44(23-25)35(46)12-11-31(54-44)24-41(6,50)40(48)49)26(2)9-10-30-14-18-43(53-30)19-15-33-39(57-43)36(47)29(5)38(52-33)32(45)22-28(4)37-27(3)13-17-42(56-37)16-7-8-20-51-42/h9-10,23,26-28,30-39,45-47,50H,5,7-8,11-22,24H2,1-4,6H3,(H,48,49)/b10-9+ |
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| InChI Key | QNDVLZJODHBUFM-MDZDMXLPSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as ketals. These are acetals derived from ketones by replacement of the oxo group by two hydrocarbyloxy groups R2C(OR)2 ( R not Hydrogen ). This term, once abandoned, has been reinstated as a subclass of acetals. |
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| Kingdom | Organic compounds |
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| Super Class | Organic oxygen compounds |
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| Class | Organooxygen compounds |
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| Sub Class | Ethers |
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| Direct Parent | Ketals |
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| Alternative Parents | |
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| Substituents | - Ketal
- Alpha-hydroxy acid
- Hydroxy acid
- Oxane
- Pyran
- Tertiary alcohol
- Tetrahydrofuran
- Secondary alcohol
- Organoheterocyclic compound
- Oxacycle
- Monocarboxylic acid or derivatives
- Dialkyl ether
- Carboxylic acid
- Carboxylic acid derivative
- Hydrocarbon derivative
- Carbonyl group
- Organic oxide
- Alcohol
- Aliphatic heteropolycyclic compound
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| Molecular Framework | Aliphatic heteropolycyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | Not Available |
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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 | 164 - 166 °C | 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 Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 6.97 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 20.4354 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.41 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 4550.9 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 156.4 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 290.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 166.5 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 293.7 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1217.2 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 821.8 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 129.5 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1820.1 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 839.8 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 2161.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 678.5 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 578.4 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 178.1 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 316.0 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 10.0 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - Okadaic acid GC-MS (TMS_1_1) - 70eV, Positive | Not Available | 2021-10-19 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Okadaic acid GC-MS (TMS_1_2) - 70eV, Positive | Not Available | 2021-10-19 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Okadaic acid GC-MS (TMS_1_3) - 70eV, Positive | Not Available | 2021-10-19 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Okadaic acid GC-MS (TMS_1_4) - 70eV, Positive | Not Available | 2021-10-19 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Okadaic acid GC-MS (TMS_1_5) - 70eV, Positive | Not Available | 2021-10-19 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 10V, Positive-QTOF | splash10-052u-6202012910-6a4e7089c2f900223a19 | 2016-08-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 20V, Positive-QTOF | splash10-052u-9112168800-6d0bf4b6d501addde97b | 2016-08-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 40V, Positive-QTOF | splash10-0pic-9212022100-6bc8f80d6aac5cf74256 | 2016-08-01 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 10V, Negative-QTOF | splash10-000i-9302010110-aeb2581b5f1840056f0c | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 20V, Negative-QTOF | splash10-000i-9017000500-f2952279f3ed70043dc9 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 40V, Negative-QTOF | splash10-0fft-9546110100-b7aa8c44534d446d8d84 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 10V, Positive-QTOF | splash10-052r-0000000940-aeab3fb939aa872c1efe | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 20V, Positive-QTOF | splash10-0550-2221318950-2e80f445457f8309718b | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 40V, Positive-QTOF | splash10-0zg1-9314741130-5d7a2011860509c7bdd2 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 10V, Negative-QTOF | splash10-0udi-0000000490-8ac6020070b8bb2cfe0f | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 20V, Negative-QTOF | splash10-0udi-1000012690-2c912d6a29b8ade97e7a | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Okadaic acid 40V, Negative-QTOF | splash10-0udv-3191402440-9d778ac031975ee1c0ef | 2021-09-23 | Wishart Lab | View Spectrum |
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| General References | - Yatsunami J, Komori A, Ohta T, Suganuma M, Fujiki H: Hyperphosphorylation of retinoblastoma protein and p53 by okadaic acid, a tumor promoter. Cancer Res. 1993 Jan 15;53(2):239-41. [PubMed:8417815 ]
- Korhonen P, Kyrylenko S, Suuronen T, Salminen A: Changes in DNA binding pattern of transcription factor YY1 in neuronal degeneration. Neurosci Lett. 2005 Mar 29;377(2):121-4. Epub 2004 Dec 21. [PubMed:15740849 ]
- Di Bartolomeo S, Spinedi A: Potentiation of okadaic acid-induced ceramide elevation but not apoptosis by inhibition of glucosylceramide synthase in human neuroepithelioma cells. Biochem Pharmacol. 2001 Apr 1;61(7):851-6. [PubMed:11274971 ]
- Morimoto C, Kiyama A, Kameda K, Ninomiya H, Tsujita T, Okuda H: Mechanism of the stimulatory action of okadaic acid on lipolysis in rat fat cells. J Lipid Res. 2000 Feb;41(2):199-204. [PubMed:10681403 ]
- (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .
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