Extract FEMA from PubChem

This function retrieves FEMA (Flavor and Extract Manufacturers Association) flavor profile information for a list of CAS Registry Numbers (CASRN) from the PubChem database using the webchem package.

Usage

extr_pubchem_fema(casrn, verbose = TRUE)

Arguments

casrn

A vector of CAS Registry Numbers (CASRN) as atomic vectors.

verbose

A logical value indicating whether to print detailed messages. Default is TRUE.

Value

A data frame containing the FEMA flavor profile information for each CASRN. If no information is found for a particular CASRN, the output will include a row indicating this.

See also

PubChem

Examples

# \donttest{
extr_pubchem_fema(c("83-67-0", "1490-04-6"))
#> ℹ Checking Internet Connection...
#> ℹ Internet connection OK...
#> Querying 83-67-0. 
#> OK (HTTP 200).
#> 
#> Querying 5429. 
#> Not Found (HTTP 404).
#> 
#> Warning: FEMA Flavor Profile for 83-67-0 not found!
#> Querying 1490-04-6. 
#> OK (HTTP 200).
#> 
#> Querying 1254. 
#> OK (HTTP 200).
#> 
#>    cid     casrn  IUPAC_name     result
#> 1 5429   83-67-0 Theobromine       <NA>
#> 2 1254 1490-04-6     Menthol Mint, Cool
#>                                           source_name source_id
#> 1                                                <NA>      <NA>
#> 2 Flavor and Extract Manufacturers Association (FEMA)      2665
#>                                other     query
#> 1 FEMA Flavor Profile info not found   83-67-0
#> 2                               <NA> 1490-04-6
# }