Fetches information from the ChEBI database.
fetch_chebi(relation = FALSE, stars = c(3), timeout = 60)a logical value that indicates if ChEBI Ontology data will be returned instead the main compound data. This data can be used to check the relations of ChEBI ID's to each other. Default is FALSE.
a numeric vector indicating the "star" level (confidence) for which entries should
be retrieved (Possible levels are 1, 2 and 3). Default is c(3) retrieving only "3-star"
entries, which are manually annotated by the ChEBI curator team.
a numeric value specifying the time in seconds until the download of an organism archive times out. The default is 60 seconds.
A data frame that contains information about each molecule in the ChEBI database.
# \donttest{
chebi <- fetch_chebi()
head(chebi)
#> id parent_id chebi_accession
#> 1 3 NA CHEBI:3
#> 2 7 NA CHEBI:7
#> 3 7 NA CHEBI:7
#> 4 7 NA CHEBI:7
#> 5 7 NA CHEBI:7
#> 6 7 NA CHEBI:7
#> definition
#> 1
#> 2 A car-3-ene (3,7,7-trimethylbicyclo[4.1.0]hept-3-ene) that has <i>S</i> configuration at position 1 and <i>R</i> configuration at position 6.
#> 3 A car-3-ene (3,7,7-trimethylbicyclo[4.1.0]hept-3-ene) that has <i>S</i> configuration at position 1 and <i>R</i> configuration at position 6.
#> 4 A car-3-ene (3,7,7-trimethylbicyclo[4.1.0]hept-3-ene) that has <i>S</i> configuration at position 1 and <i>R</i> configuration at position 6.
#> 5 A car-3-ene (3,7,7-trimethylbicyclo[4.1.0]hept-3-ene) that has <i>S</i> configuration at position 1 and <i>R</i> configuration at position 6.
#> 6 A car-3-ene (3,7,7-trimethylbicyclo[4.1.0]hept-3-ene) that has <i>S</i> configuration at position 1 and <i>R</i> configuration at position 6.
#> stars name type_name type_accession accession_number
#> 1 2 ((R)-3-Hydroxybutanoyl)(n-2) STANDARD MANUAL_X_REF C06147
#> 2 3 (S)-(+)-3-carene SYNONYM CAS 498-15-7
#> 3 3 (S)-(+)-3-carene SYNONYM MANUAL_X_REF C00011044
#> 4 3 (S)-(+)-3-carene SYNONYM REGISTRY_NUMBER 1902767
#> 5 3 (S)-(+)-3-carene SYNONYM MANUAL_X_REF CPD-8756
#> 6 3 (S)-(+)-3-carene SYNONYM MANUAL_X_REF C11382
#> formula mass charge monoisotopic_mass
#> 1 (C4H6O2)n 86.090 0 86.03678
#> 2 C10H16 136.238 0 136.12520
#> 3 C10H16 136.238 0 136.12520
#> 4 C10H16 136.238 0 136.12520
#> 5 C10H16 136.238 0 136.12520
#> 6 C10H16 136.238 0 136.12520
# }