| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2012-09-11 17:43:18 UTC |
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| Update Date | 2022-03-07 02:52:58 UTC |
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| HMDB ID | HMDB0031447 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | N-Heptane |
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| Description | N-Heptane, also known as heptan or CH3-[CH2]5-CH3, belongs to the class of organic compounds known as alkanes. These are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms. Thus, N-heptane is considered to be a hydrocarbon lipid molecule. N-Heptane is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. N-Heptane is a sweet, alkane, and ethereal tasting compound. N-heptane has been detected, but not quantified, in cardamoms and gingers. This could make N-heptane a potential biomarker for the consumption of these foods. This is done by shaking the stained paper in a heptane solution for about half a minute. N-Heptane is a potentially toxic compound. It was originally chosen as the zero point of the scale because of the availability of very high purity n-heptane, unmixed with other isomers of heptane or other alkanes, distilled from the resin of Jeffrey pine and from the fruit of Pittosporum resiniferum. As a liquid, it is ideal for transport and storage. The 2,2-dimethylpentane isomer can be prepared by reacting tert-butyl chloride with n-propyl magnesium bromide. The linear n-heptane can be obtained from Jeffrey pine oil. In water, both bromine and iodine appear brown. n-Heptane is the straight-chain alkane with the chemical formula H3C(CH2)5CH3 or C7H16. |
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| Structure | InChI=1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3 |
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| Synonyms | | Value | Source |
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| CH3-[CH2]5-CH3 | ChEBI | | Heptan | ChEBI | | Dipropyl methane | HMDB | | Dipropylmethane | HMDB | | Heptane | HMDB | | N-Heptane, ion (1+) | MeSH, HMDB | | N-Heptane | ChEBI |
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| Chemical Formula | C7H16 |
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| Average Molecular Weight | 100.2019 |
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| Monoisotopic Molecular Weight | 100.125200512 |
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| IUPAC Name | heptane |
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| Traditional Name | heptane |
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| CAS Registry Number | 142-82-5 |
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| SMILES | CCCCCCC |
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| InChI Identifier | InChI=1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3 |
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| InChI Key | IMNFDUFMRHMDMM-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as alkanes. These are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms. |
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| Kingdom | Organic compounds |
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| Super Class | Hydrocarbons |
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| Class | Saturated hydrocarbons |
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| Sub Class | Alkanes |
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| Direct Parent | Alkanes |
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| Alternative Parents | Not Available |
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| Substituents | - Acyclic alkane
- Alkane
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic compounds |
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| External Descriptors | |
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| Ontology |
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| Physiological effect | |
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| Disposition | |
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| Process | Not Available |
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| Role | |
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| Physical Properties |
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| State | Liquid |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | -90.6 °C | Not Available | | Boiling Point | 98.00 to 99.00 °C. @ 760.00 mm Hg | The Good Scents Company Information System | | Water Solubility | 0.0034 mg/mL at 25 °C | Not Available | | LogP | 4.66 | 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. | 5.77 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 18.7415 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 6.04 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 67.9 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2185.8 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 714.1 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 279.8 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 505.2 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 375.4 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 796.4 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 | 815.6 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 294.5 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1602.3 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 538.6 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 | 1628.6 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 605.2 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 513.1 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 744.5 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 604.4 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 | 33.2 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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| Spectra |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Experimental GC-MS | GC-MS Spectrum - N-Heptane EI-B (Non-derivatized) | splash10-0006-9000000000-f0cc7fc3d738a53fb2f4 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - N-Heptane EI-B (Non-derivatized) | splash10-0006-9000000000-701ce932ab165d8e8bb5 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - N-Heptane CI-B (Non-derivatized) | splash10-052b-9000000000-cd5fb3334021134f2ac9 | 2017-09-12 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - N-Heptane EI-B (Non-derivatized) | splash10-0006-9000000000-f0cc7fc3d738a53fb2f4 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - N-Heptane EI-B (Non-derivatized) | splash10-0006-9000000000-701ce932ab165d8e8bb5 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Experimental GC-MS | GC-MS Spectrum - N-Heptane CI-B (Non-derivatized) | splash10-052b-9000000000-cd5fb3334021134f2ac9 | 2018-05-18 | HMDB team, MONA, MassBank | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - N-Heptane GC-MS (Non-derivatized) - 70eV, Positive | splash10-0kkc-9100000000-54d45cd9fca349510945 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - N-Heptane GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | MS | Mass Spectrum (Electron Ionization) | splash10-002f-9000000000-f1e9fbc0c33d09ed3af0 | 2014-09-20 | Not Available | 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 - N-Heptane 10V, Positive-QTOF | splash10-0udi-0900000000-0d9528de84b11f1ec6bf | 2016-06-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 20V, Positive-QTOF | splash10-0udi-2900000000-f021ed32f7b9cdc6c15b | 2016-06-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 40V, Positive-QTOF | splash10-052f-9000000000-dcfff968540e615c2980 | 2016-06-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 10V, Negative-QTOF | splash10-0002-9000000000-26a47f728c33c4333d1a | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 20V, Negative-QTOF | splash10-0002-9000000000-238ea0d3b7dc86b14383 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 40V, Negative-QTOF | splash10-0002-9000000000-7b67d034dc68406ac86c | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 10V, Positive-QTOF | splash10-0pb9-9400000000-e1df3b63528592bd1e35 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 20V, Positive-QTOF | splash10-0a4i-9000000000-3b2080aa0487a1674b28 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 40V, Positive-QTOF | splash10-052f-9000000000-7924826c9a569fedc90c | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 10V, Negative-QTOF | splash10-0002-9000000000-80e849e93a9e1a130719 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 20V, Negative-QTOF | splash10-0002-9000000000-8f0b23f740ece2564fcb | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - N-Heptane 40V, Negative-QTOF | splash10-0002-9000000000-41dbc058bfa29e469bb2 | 2021-09-22 | Wishart Lab | View Spectrum |
NMR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Biological Properties |
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| Cellular Locations | |
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| Biospecimen Locations | |
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| Tissue Locations | Not Available |
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| Pathways | |
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| Normal Concentrations |
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| Breath | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Normal | | details | | Saliva | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Not Specified | Normal | | details |
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| Abnormal Concentrations |
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| Not Available |
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| Associated Disorders and Diseases |
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| Disease References | None |
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| Associated OMIM IDs | None |
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| External Links |
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| DrugBank ID | Not Available |
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| Phenol Explorer Compound ID | Not Available |
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| FooDB ID | FDB005379 |
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| KNApSAcK ID | C00038346 |
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| Chemspider ID | 8560 |
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| KEGG Compound ID | Not Available |
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| BioCyc ID | CPD-9286 |
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| BiGG ID | Not Available |
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| Wikipedia Link | Heptane |
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| METLIN ID | Not Available |
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| PubChem Compound | 8900 |
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| PDB ID | Not Available |
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| ChEBI ID | 43098 |
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| Food Biomarker Ontology | Not Available |
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| VMH ID | Not Available |
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| MarkerDB ID | Not Available |
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| Good Scents ID | rw1249371 |
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| References |
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| Synthesis Reference | Not Available |
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| Material Safety Data Sheet (MSDS) | Download (PDF) |
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| General References | - (). Duke, James A. (1992) Handbook of phytochemical constituents of GRAS herbs and other economic plants. Boca Raton, FL. CRC Press.. .
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