# Elaidic acid (trans-18:1n-9) (Compound)

Go to Compound classificationID | 436 |
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Name | Elaidic acid (trans-18:1n-9) |

Synonyms | trans-9-Octadecenoic acid |

Structure | |

Description | |

Classification | Compounds > Diet > Lipids > Fatty acids > MUFA |

CAS number | 112-79-8 |

PubChem ID | 637517 |

ChEBI ID | 27997 |

FooDB ID | FDB002951 |

HMDB ID | HMDB00573 |

## Chemical data

### MolDBi data

IUPAC Name | (9Z)-octadec-9-enoic acid |
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Traditional IUPAC Name | oleic acid |

Formula | C18H34O2 |

InChI | InChI=1S/C18H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h9-10H,2-8,11-17H2,1H3,(H,19,20)/b10-9+ |

InChI Key | ZQPPMHVWECSIRJ-MDZDMXLPSA-N |

Molecular weight | 282.4614 |

Exact mass | 282.255880332 |

SMILES | CCCCCCCC\C=C\CCCCCCCC(O)=O |

### ClassyFire Taxonomy

Description | belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. |
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Kingdom | Organic compounds |

Super Class | Lipids and lipid-like molecules |

Class | Fatty Acyls |

Sub Class | Fatty acids and conjugates |

Direct Parent | Long-chain fatty acids |

Alternative Parents |

## Publications with Elaidic acid (trans-18:1n-9)

## Biomarker data

### Measurements of Elaidic acid (trans-18:1n-9) in biospecimens

#### Concentration values

ID | Parent ID | Depth | Subject group | Population | Country | Cohort | Biomarker Time definition | Biospecimen | Analytical method | Biomarker | Biomarker detail | Measurement size | Detected (nb) | Detected (%) | Detected only? | Arithmethic mean | Arithmethic SD | Geometric mean | Geometric SD | Min | Min (detected) | Percentile_05 | Percentile_10 | Percentile_25 | Median | Percentile_75 | Percentile_90 | Percentile_95 | Max | Interquartile range | Mean 95% CI lower | Mean 95% CI upper | GMean 95% CI lower | GMean 95% CI upper | Unit | Converted arithmetic mean | Converted geometric mean | Converted median | Converted unit | Adjustment type | Adjusted on | Regressed on | Expressed as | Publication |
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#### Reproducibility values

ID | Excretion ID | Subject group | Population | Country | Cohort | Biomarker Time definition | Biospecimen | Analytical method | Biomarker | Biomarker detail | Arithmetic mean | Geometric mean | Median | Unit | Adjusted on | Reproducibility size | ICC | ICC 95% CI lower | ICC 95% CI upper | CV% WS | CV% BS | VAR WS | VAR BS | Publication |
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### Associations of Elaidic acid (trans-18:1n-9) with exposures

#### Correlation values

ID | Intake ID | Excretion ID | Subject group | Population | Country | Cohort | Intake Time definition | Intake Assessment method | Intake | Intake detail | Supplement intakes included? | Intake Arithmetic mean | Intake Geometric mean | Intake Median | Intake Unit | Intake Adjusted on | Biomarker Time definition | Biospecimen | Analytical method | Biomarker | Biomarker detail | Biomarker Arithmetic mean | Biomarker Geometric mean | Biomarker Median | Biomarker Unit | Biomarker Adjusted on | Correlation size | Correlation type | Correlation value | Correlation 95% CI lower | Correlation 95% CI upper | Correlation p-value | Significant? | Measurement adjustment | Deattenuated? | Covariates | Publication |
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#### Metabolomic associations

ID | Intake ID | Excretion ID | Subject group | Population | Country | Cohort | No. of subjects | Intake Assessment method | Intake | Intervention dose | Biospecimen | Analytical method | Biomarker | Structural identification | Feature selection | Area under curve | Sensitivity | Specificity | PLS-DA VIP | Beta coefficient | Beta coefficient p-value | ANOVA p-value | Publication |
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### Associations of Elaidic acid (trans-18:1n-9) with cancer risk

#### Cancer associations

ID | Excretion ID | Subject group | Population | Country | Cohort | No. of subjects | No. of cases | No. of controls | Biospecimen | Analytical method | Biomarker | Biomarker detail | Cancer | Study design | Publication |
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## Exposure data

### Measurements of Elaidic acid (trans-18:1n-9) exposures in populations

#### Intake values

ID | Parent ID | Depth | Subject group | Population | Country | Cohort | Intake Time definition | Intake assessment tool | Intake food coverage | Intake time coverage | Intake Assessment method | Intake | Intake detail | Food description | Supplement intakes included? | Measurement size | Detected (nb) | Detected (%) | Detected only? | Arithmethic mean | Arithmethic SD | Geometric mean | Geometric SD | Min | Min (detected) | Percentile_05 | Percentile_10 | Percentile_25 | Median | Percentile_75 | Percentile_90 | Percentile_95 | Max | Interquartile range | Mean 95% CI lower | Mean 95% CI upper | GMean 95% CI lower | GMean 95% CI upper | Unit | Converted arithmetic mean | Converted geometric mean | Converted median | Converted unit | Adjustment type | Adjusted on | Regressed on | Expressed as | Publication |
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### Associations of Elaidic acid (trans-18:1n-9) exposures with biomarkers

#### Correlation values

ID | Intake ID | Excretion ID | Subject group | Population | Country | Cohort | Intake Time definition | Intake Assessment method | Intake | Intake detail | Supplement intakes included? | Intake Arithmetic mean | Intake Geometric mean | Intake Median | Intake Unit | Intake Adjusted on | Biomarker Time definition | Biospecimen | Analytical method | Biomarker | Biomarker detail | Biomarker Arithmetic mean | Biomarker Geometric mean | Biomarker Median | Biomarker Unit | Biomarker Adjusted on | Correlation size | Correlation type | Correlation value | Correlation 95% CI lower | Correlation 95% CI upper | Correlation p-value | Significant? | Measurement adjustment | Deattenuated? | Covariates | Publication |
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