Record Information |
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Version | 5.0 |
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Status | Detected and Quantified |
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Creation Date | 2005-11-16 15:48:42 UTC |
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Update Date | 2022-03-07 02:49:00 UTC |
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HMDB ID | HMDB0000256 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Squalene |
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Description | Squalene is an unsaturated aliphatic hydrocarbon (carotenoid) with six unconjugated double bonds found in human sebum (5%), fish liver oils, yeast lipids, and many vegetable oils (e.g. palm oil, cottonseed oil, rapeseed oil). Squalene is a volatile component of the scent material from Saguinus oedipus (cotton-top tamarin monkey) and Saguinus fuscicollis (saddle-back tamarin monkey) (Hawley's Condensed Chemical Reference). Squalene is a component of adult human sebum that is principally responsible for fixing fingerprints (ChemNetBase). It is a natural organic compound originally obtained for commercial purposes primarily from shark liver oil, though there are botanical sources as well, including rice bran, wheat germ, and olives. All higher organisms produce squalene, including humans. It is a hydrocarbon and a triterpene. Squalene is a biochemical precursor to the whole family of steroids. Oxidation of one of the terminal double bonds of squalene yields 2,3-squalene oxide which undergoes enzyme-catalyzed cyclization to afford lanosterol, which is then elaborated into cholesterol and other steroids. Squalene is a low-density compound often stored in the bodies of cartilaginous fishes such as sharks, which lack a swim bladder and must therefore reduce their body density with fats and oils. Squalene, which is stored mainly in the shark's liver, is lighter than water with a specific gravity of 0.855 (Wikipedia ) Squalene is used as a bactericide. It is also an intermediate in the manufacture of pharmaceuticals, rubber chemicals, and colouring materials (Physical Constants of Chemical Substances). |
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Structure | CC(C)=CCC\C(C)=C\CC\C(C)=C\CC\C=C(/C)CC\C=C(/C)CCC=C(C)C InChI=1S/C30H50/c1-25(2)15-11-19-29(7)23-13-21-27(5)17-9-10-18-28(6)22-14-24-30(8)20-12-16-26(3)4/h15-18,23-24H,9-14,19-22H2,1-8H3/b27-17+,28-18+,29-23+,30-24+ |
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Synonyms | Value | Source |
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(all-e)-2,6,10,15,19,23-Hexamethyl-2,6,10,14,18,22-tetracosahexaene | ChEBI | Spinacene | ChEBI | Supraene | ChEBI | (e,e,e,e)-Squalene | HMDB | all-trans-Squalene | HMDB | trans-Squalene | HMDB | Squalene | HMDB |
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Chemical Formula | C30H50 |
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Average Molecular Weight | 410.73 |
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Monoisotopic Molecular Weight | 410.39125161 |
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IUPAC Name | (6E,10E,14E,18E)-2,6,10,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaene |
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Traditional Name | squalene |
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CAS Registry Number | 111-02-4 |
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SMILES | CC(C)=CCC\C(C)=C\CC\C(C)=C\CC\C=C(/C)CC\C=C(/C)CCC=C(C)C |
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InChI Identifier | InChI=1S/C30H50/c1-25(2)15-11-19-29(7)23-13-21-27(5)17-9-10-18-28(6)22-14-24-30(8)20-12-16-26(3)4/h15-18,23-24H,9-14,19-22H2,1-8H3/b27-17+,28-18+,29-23+,30-24+ |
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InChI Key | YYGNTYWPHWGJRM-AAJYLUCBSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as triterpenoids. These are terpene molecules containing six isoprene units. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Prenol lipids |
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Sub Class | Triterpenoids |
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Direct Parent | Triterpenoids |
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Alternative Parents | |
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Substituents | - Triterpenoid
- Branched unsaturated hydrocarbon
- Unsaturated aliphatic hydrocarbon
- Unsaturated hydrocarbon
- Olefin
- Acyclic olefin
- Hydrocarbon
- 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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Not Available | Not Available |
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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 | -75 °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 | Experimental Collision Cross Sections |
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Predicted Molecular Properties | |
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times UnderivatizedChromatographic 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. | 8.4 minutes | 32390414 | Predicted by Siyang on May 30, 2022 | 32.8003 minutes | 33406817 | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.41 minutes | 32390414 | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 42.0 seconds | 40023050 | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 4848.1 seconds | 40023050 | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 976.7 seconds | 40023050 | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 399.1 seconds | 40023050 | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 540.0 seconds | 40023050 | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 228.1 seconds | 40023050 | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1233.8 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 | 1227.0 seconds | 40023050 | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 102.3 seconds | 40023050 | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 2903.1 seconds | 40023050 | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 1090.4 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 | 1602.1 seconds | 40023050 | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 1076.2 seconds | 40023050 | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 644.8 seconds | 40023050 | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 326.3 seconds | 40023050 | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 941.6 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 | 9.5 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatized |
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Spectra |
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Biological Properties |
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Cellular Locations | - Extracellular
- Membrane (predicted from logP)
- Endoplasmic reticulum
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Biospecimen Locations | |
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Tissue Locations | - Epidermis
- Fibroblasts
- Liver
- Testis
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Pathways | |
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Normal Concentrations |
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Blood | Detected and Quantified | 2.22 +/- 0.063 uM | Adult (>18 years old) | Female | Normal | | details | Blood | Detected and Quantified | 1.58 +/- 0.063 uM | Adult (>18 years old) | Female | Normal | | details | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Normal | | details | Sweat | Detected but not Quantified | Not Quantified | Adult | Both | Normal | | details |
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Abnormal Concentrations |
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Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Colorectal Cancer | | details | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Colorectal Cancer | | details | Feces | Detected but not Quantified | Not Quantified | Adult (>18 years old) | Both | Colorectal cancer | | details |
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Associated Disorders and Diseases |
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Disease References | Colorectal cancer |
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- Sinha R, Ahn J, Sampson JN, Shi J, Yu G, Xiong X, Hayes RB, Goedert JJ: Fecal Microbiota, Fecal Metabolome, and Colorectal Cancer Interrelations. PLoS One. 2016 Mar 25;11(3):e0152126. doi: 10.1371/journal.pone.0152126. eCollection 2016. [PubMed:27015276 ]
- Brown DG, Rao S, Weir TL, O'Malia J, Bazan M, Brown RJ, Ryan EP: Metabolomics and metabolic pathway networks from human colorectal cancers, adjacent mucosa, and stool. Cancer Metab. 2016 Jun 6;4:11. doi: 10.1186/s40170-016-0151-y. eCollection 2016. [PubMed:27275383 ]
- Goedert JJ, Sampson JN, Moore SC, Xiao Q, Xiong X, Hayes RB, Ahn J, Shi J, Sinha R: Fecal metabolomics: assay performance and association with colorectal cancer. Carcinogenesis. 2014 Sep;35(9):2089-96. doi: 10.1093/carcin/bgu131. Epub 2014 Jul 18. [PubMed:25037050 ]
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Associated OMIM IDs | |
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External Links |
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DrugBank ID | DB11460 |
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Phenol Explorer Compound ID | Not Available |
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FooDB ID | Not Available |
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KNApSAcK ID | C00003755 |
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Chemspider ID | 553635 |
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KEGG Compound ID | C00751 |
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BioCyc ID | SQUALENE |
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BiGG ID | Not Available |
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Wikipedia Link | Squalene |
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METLIN ID | Not Available |
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PubChem Compound | 638072 |
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PDB ID | Not Available |
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ChEBI ID | 15440 |
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Food Biomarker Ontology | Not Available |
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VMH ID | SQL |
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MarkerDB ID | Not Available |
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Good Scents ID | Not Available |
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References |
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Synthesis Reference | Peng, Wanxi; Li, Kaifu. Method of preparation of squalene. Faming Zhuanli Shenqing Gongkai Shuomingshu (2006), 9pp. |
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Material Safety Data Sheet (MSDS) | Download (PDF) |
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General References | - Strauss JS, Stranieri AM, Farrell LN, Downing DT: The effect of marked inhibition of sebum production with 13cis-retinoic acid on skin surface lipid composition. J Invest Dermatol. 1980 Feb;74(2):66-7. [PubMed:6444323 ]
- Grimes DS, Hindle E, Dyer T: Sunlight, cholesterol and coronary heart disease. QJM. 1996 Aug;89(8):579-89. [PubMed:8935479 ]
- Relas H, Gylling H, Miettinen TA: Dietary squalene increases cholesterol synthesis measured with serum non-cholesterol sterols after a single oral dose in humans. Atherosclerosis. 2000 Oct;152(2):377-83. [PubMed:10998465 ]
- Nikkila K, Hockerstedt K, Miettinen TA: Serum and hepatic cholestanol, squalene and noncholesterol sterols in man: a study on liver transplantation. Hepatology. 1992 May;15(5):863-70. [PubMed:1568728 ]
- Gylling H, Relas H, Miettinen HE, Radhakrishnan R, Miettinen TA: Delayed postprandial retinyl palmitate and squalene removal in a patient heterozygous for apolipoprotein A-IFIN mutation (Leu 159-->Arg) and low HDL cholesterol level without coronary artery disease. Atherosclerosis. 1996 Dec 20;127(2):239-43. [PubMed:9125314 ]
- Rajaratnam RA, Gylling H, Miettinen TA: Independent association of serum squalene and noncholesterol sterols with coronary artery disease in postmenopausal women. J Am Coll Cardiol. 2000 Apr;35(5):1185-91. [PubMed:10758959 ]
- Rajaratnam RA, Gylling H, Miettinen TA: Serum squalene in postmenopausal women without and with coronary artery disease. Atherosclerosis. 1999 Sep;146(1):61-4. [PubMed:10487487 ]
- Thiele JJ, Weber SU, Packer L: Sebaceous gland secretion is a major physiologic route of vitamin E delivery to skin. J Invest Dermatol. 1999 Dec;113(6):1006-10. [PubMed:10594744 ]
- Relas H, Gylling H, Miettinen TA: Effect of stanol ester on postabsorptive squalene and retinyl palmitate. Metabolism. 2000 Apr;49(4):473-8. [PubMed:10778871 ]
- Gylling H, Vuoristo M, Farkkila M, Miettinen TA: The metabolism of cholestanol in primary biliary cirrhosis. J Hepatol. 1996 Apr;24(4):444-51. [PubMed:8738731 ]
- Chiba K, Yoshizawa K, Makino I, Kawakami K, Onoue M: Changes in the levels of glutathione after cellular and cutaneous damage induced by squalene monohydroperoxide. J Biochem Mol Toxicol. 2001;15(3):150-8. [PubMed:11424225 ]
- Nosaka Y, Yamanishi Y, Hirayama C: Biliary squalene levels in hepatobiliary disease. Gastroenterol Jpn. 1985 Aug;20(4):338-43. [PubMed:4054510 ]
- Kohno Y, Egawa Y, Itoh S, Nagaoka S, Takahashi M, Mukai K: Kinetic study of quenching reaction of singlet oxygen and scavenging reaction of free radical by squalene in n-butanol. Biochim Biophys Acta. 1995 Apr 28;1256(1):52-6. [PubMed:7742356 ]
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