| 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 | 2022-03-07 02:49:08 UTC |
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| HMDB ID | HMDB0001242 |
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| Secondary Accession Numbers | - HMDB0006843
- HMDB01242
- HMDB06843
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| Metabolite Identification |
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| Common Name | Obtusifoliol |
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| Description | Obtusifoliol belongs to the class of organic compounds known as ergosterols and derivatives. These are steroids containing ergosta-5,7,22-trien-3beta-ol or a derivative thereof, which is based on the 3beta-hydroxylated ergostane skeleton. Thus, obtusifoliol is considered to be a sterol lipid molecule. Obtusifoliol is found, on average, in the highest concentration within evening primroses. Obtusifoliol has also been detected, but not quantified in, several different foods, such as common chokecherries, jicama, pepper (C. frutescens), avocado, and pecan nuts. This could make obtusifoliol a potential biomarker for the consumption of these foods. Obtusifoliol is an intermediate in the biosynthesis of cholesterol: in a reaction catalyzed by the enzyme CYP51A1 (EC 1.14.13.70, sterol 14-demethylase) (PMID: 9559662 ). CYP51A1 is a housekeeping enzyme essential for the viability of mammals, an essential step in cholesterol biosynthesis. Sterol 14-demethylation occurs in all organisms exhibiting de novo sterol biosynthesis and CYP51A1 has been conserved throughout evolution (PMID: 8797093 ). |
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| Structure | [H][C@@]1(CC[C@@]2(C)C3=C(CC[C@]12C)[C@@]1(C)CC[C@H](O)[C@@H](C)[C@]1([H])CC3)[C@H](C)CCC(=C)C(C)C InChI=1S/C30H50O/c1-19(2)20(3)9-10-21(4)23-13-17-30(8)26-12-11-24-22(5)27(31)15-16-28(24,6)25(26)14-18-29(23,30)7/h19,21-24,27,31H,3,9-18H2,1-2,4-8H3/t21-,22+,23-,24+,27+,28+,29-,30+/m1/s1 |
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| Synonyms | | Value | Source |
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| 4alpha,14alpha-Dimethyl-5alpha-ergosta-8,24(28)-dien-3beta-ol | KEGG | | 4alpha,14alpha-Dimethyl-24-methylene-5alpha-cholesta-8-en-3beta-ol | KEGG | | 4a,14a-Dimethyl-5a-ergosta-8,24(28)-dien-3b-ol | Generator | | 4α,14α-Dimethyl-5α-ergosta-8,24(28)-dien-3β-ol | Generator | | 4a,14a-Dimethyl-24-methylene-5a-cholesta-8-en-3b-ol | Generator | | 4α,14α-Dimethyl-24-methylene-5α-cholesta-8-en-3β-ol | Generator | | (+)-Obtusifoliol | HMDB | | (3beta,4alpha,5alpha)-4,14-Dimethylergosta-8,24(28)-dien-3-ol | HMDB | | (3β,4α,5α)-4,14-Dimethylergosta-8,24(28)-dien-3-ol | HMDB | | 4alpha,14alpha-Dimethyl-delta8,24(28)-ergostadien-3beta-ol | HMDB | | 4α,14α-Dimethyl-Δ8,24(28)-ergostadien-3β-ol | HMDB | | Obtusifoliol | HMDB |
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| Chemical Formula | C30H50O |
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| Average Molecular Weight | 426.7174 |
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| Monoisotopic Molecular Weight | 426.386166222 |
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| IUPAC Name | (2S,5S,6S,7S,11R,14R,15R)-2,6,11,15-tetramethyl-14-[(2R)-6-methyl-5-methylideneheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-1(10)-en-5-ol |
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| Traditional Name | (2S,5S,6S,7S,11R,14R,15R)-2,6,11,15-tetramethyl-14-[(2R)-6-methyl-5-methylideneheptan-2-yl]tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-1(10)-en-5-ol |
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| CAS Registry Number | 16910-32-0 |
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| SMILES | [H][C@@]1(CC[C@@]2(C)C3=C(CC[C@]12C)[C@@]1(C)CC[C@H](O)[C@@H](C)[C@]1([H])CC3)[C@H](C)CCC(=C)C(C)C |
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| InChI Identifier | InChI=1S/C30H50O/c1-19(2)20(3)9-10-21(4)23-13-17-30(8)26-12-11-24-22(5)27(31)15-16-28(24,6)25(26)14-18-29(23,30)7/h19,21-24,27,31H,3,9-18H2,1-2,4-8H3/t21-,22+,23-,24+,27+,28+,29-,30+/m1/s1 |
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| InChI Key | MMNYKQIDRZNIKT-VSADUBDNSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as ergosterols and derivatives. These are steroids containing ergosta-5,7,22-trien-3beta-ol or a derivative thereof, which is based on the 3beta-hydroxylated ergostane skeleton. |
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| Kingdom | Organic compounds |
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| Super Class | Lipids and lipid-like molecules |
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| Class | Steroids and steroid derivatives |
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| Sub Class | Ergostane steroids |
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| Direct Parent | Ergosterols and derivatives |
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| Alternative Parents | |
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| Substituents | - Ergosterol-skeleton
- 14-alpha-methylsteroid
- 3-beta-hydroxysteroid
- Hydroxysteroid
- 3-hydroxysteroid
- Cyclic alcohol
- Secondary alcohol
- Organic oxygen compound
- Hydrocarbon derivative
- Organooxygen compound
- Alcohol
- Aliphatic homopolycyclic compound
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| Molecular Framework | Aliphatic homopolycyclic compounds |
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| External Descriptors | - Ergosterols and C24-methyl derivatives (C01943 )
- Ergosterols and C24-methyl derivatives (LMST01030101 )
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| Ontology |
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| Not Available | 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 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. | 9.57 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 28.8396 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 2.2 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 44.4 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 3528.4 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 900.8 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 340.2 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 354.3 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 663.9 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 1246.1 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 | 1270.1 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 102.7 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 2256.9 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 748.8 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 | 2266.3 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 856.0 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 629.3 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 357.8 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 873.4 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 | 9.1 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized |
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