| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2021-09-11 06:41:29 UTC |
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| Update Date | 2021-09-26 23:00:53 UTC |
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| HMDB ID | HMDB0249806 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | Cephaeline |
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| Description | Desmethylemetine, also known as cephaelin, belongs to the class of organic compounds known as emetine alkaloids. These are alkaloids with a structure characterized by the presence of both an isoquinoline and a benzoquinolizidine nuclei. Based on a literature review very few articles have been published on Desmethylemetine. This compound has been identified in human blood as reported by (PMID: 31557052 ). Cephaeline is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Cephaeline is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources. |
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| Structure | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1NCCC2=CC(O)=C(OC)C=C12 InChI=1S/C28H38N2O4/c1-5-17-16-30-9-7-19-13-27(33-3)28(34-4)15-22(19)24(30)11-20(17)10-23-21-14-26(32-2)25(31)12-18(21)6-8-29-23/h12-15,17,20,23-24,29,31H,5-11,16H2,1-4H3 |
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| Synonyms | | Value | Source |
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| Cephaelin | MeSH | | Cephaline | MeSH | | Desmethyl-emetine | MeSH | | Desmethylemetine | MeSH |
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| Chemical Formula | C28H38N2O4 |
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| Average Molecular Weight | 466.622 |
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| Monoisotopic Molecular Weight | 466.283157712 |
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| IUPAC Name | 1-({3-ethyl-9,10-dimethoxy-1H,2H,3H,4H,6H,7H,11bH-pyrido[2,1-a]isoquinolin-2-yl}methyl)-7-methoxy-1,2,3,4-tetrahydroisoquinolin-6-ol |
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| Traditional Name | cephaeline |
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| CAS Registry Number | Not Available |
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| SMILES | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1NCCC2=CC(O)=C(OC)C=C12 |
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| InChI Identifier | InChI=1S/C28H38N2O4/c1-5-17-16-30-9-7-19-13-27(33-3)28(34-4)15-22(19)24(30)11-20(17)10-23-21-14-26(32-2)25(31)12-18(21)6-8-29-23/h12-15,17,20,23-24,29,31H,5-11,16H2,1-4H3 |
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| InChI Key | DTGZHCFJNDAHEN-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as emetine alkaloids. These are alkaloids with a structure characterized by the presence of both an isoquinoline and a benzoquinolizidine nuclei. |
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| Kingdom | Organic compounds |
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| Super Class | Alkaloids and derivatives |
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| Class | Emetine alkaloids |
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| Sub Class | Not Available |
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| Direct Parent | Emetine alkaloids |
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| Alternative Parents | |
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| Substituents | - Emetine alkaloid
- Quinolizidine
- Tetrahydroisoquinoline
- Anisole
- Alkyl aryl ether
- 1-hydroxy-2-unsubstituted benzenoid
- Aralkylamine
- Piperidine
- Benzenoid
- Tertiary amine
- Tertiary aliphatic amine
- Secondary aliphatic amine
- Ether
- Azacycle
- Secondary amine
- Organoheterocyclic compound
- Organonitrogen compound
- Amine
- Organopnictogen compound
- Organooxygen compound
- Hydrocarbon derivative
- Organic oxygen compound
- Organic nitrogen compound
- Aromatic heteropolycyclic compound
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| Molecular Framework | Aromatic 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 | Not Available |
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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 Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Predicted by Siyang on May 30, 2022 | 10.5955 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.72 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1294.2 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 160.0 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 191.0 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 163.4 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 87.8 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 392.8 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 | 363.2 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 619.4 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 792.9 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 337.3 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 | 1026.1 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 203.4 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 290.0 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 448.5 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 530.2 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 | 18.6 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Cephaeline,2TMS,isomer #1 | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1C2=CC(OC)=C(O[Si](C)(C)C)C=C2CCN1[Si](C)(C)C | 3867.8 | Semi standard non polar | 33892256 | | Cephaeline,2TMS,isomer #1 | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1C2=CC(OC)=C(O[Si](C)(C)C)C=C2CCN1[Si](C)(C)C | 4057.3 | Standard non polar | 33892256 | | Cephaeline,2TMS,isomer #1 | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1C2=CC(OC)=C(O[Si](C)(C)C)C=C2CCN1[Si](C)(C)C | 4757.5 | Standard polar | 33892256 | | Cephaeline,1TBDMS,isomer #2 | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1C2=CC(OC)=C(O)C=C2CCN1[Si](C)(C)C(C)(C)C | 4117.5 | Semi standard non polar | 33892256 | | Cephaeline,1TBDMS,isomer #2 | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1C2=CC(OC)=C(O)C=C2CCN1[Si](C)(C)C(C)(C)C | 4230.2 | Standard non polar | 33892256 | | Cephaeline,1TBDMS,isomer #2 | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1C2=CC(OC)=C(O)C=C2CCN1[Si](C)(C)C(C)(C)C | 5099.0 | Standard polar | 33892256 | | Cephaeline,2TBDMS,isomer #1 | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1C2=CC(OC)=C(O[Si](C)(C)C(C)(C)C)C=C2CCN1[Si](C)(C)C(C)(C)C | 4284.9 | Semi standard non polar | 33892256 | | Cephaeline,2TBDMS,isomer #1 | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1C2=CC(OC)=C(O[Si](C)(C)C(C)(C)C)C=C2CCN1[Si](C)(C)C(C)(C)C | 4483.0 | Standard non polar | 33892256 | | Cephaeline,2TBDMS,isomer #1 | CCC1CN2CCC3=CC(OC)=C(OC)C=C3C2CC1CC1C2=CC(OC)=C(O[Si](C)(C)C(C)(C)C)C=C2CCN1[Si](C)(C)C(C)(C)C | 4918.7 | Standard polar | 33892256 |
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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 - Cephaeline GC-MS (Non-derivatized) - 70eV, Positive | splash10-0fi1-0980500000-9e89169bc34e697693bb | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Cephaeline GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Cephaeline GC-MS (TMS_1_1) - 70eV, Positive | Not Available | 2021-11-03 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Cephaeline GC-MS (TMS_1_2) - 70eV, Positive | Not Available | 2021-11-03 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Cephaeline GC-MS (TBDMS_1_1) - 70eV, Positive | Not Available | 2021-11-03 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Experimental LC-MS/MS | LC-MS/MS Spectrum - Cephaeline 6V, Positive-QTOF | splash10-014i-0020900000-e24ad5f6bb0311ba4c00 | 2021-09-20 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cephaeline 10V, Positive-QTOF | splash10-014i-0000900000-a40eaed843bb1ad77873 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cephaeline 20V, Positive-QTOF | splash10-014i-0020900000-cde6b73af91fb65e6d46 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cephaeline 40V, Positive-QTOF | splash10-06rf-1692400000-fb940feccfb65b6de7f7 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cephaeline 10V, Negative-QTOF | splash10-014i-0000900000-ff3c1a63776dd83812d4 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cephaeline 20V, Negative-QTOF | splash10-014i-0000900000-22e228998e07b2107bf3 | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cephaeline 40V, Negative-QTOF | splash10-03fr-0313900000-432caa7cf8b1ab1a2a9f | 2021-10-12 | Wishart Lab | View Spectrum |
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