R: Query the FDA Global Substance Registration System (GSRS) API

# Query the FDA Global Substance Registration System (GSRS) API

## Documentation for package ‘rgsrs’ version 0.1.0

- DESCRIPTION file
- Package NEWS
- Package README

## Help Pages

gsrs_all | Retrieve comprehensive GSRS data for a set of UNIIs
gsrs_browse | Browse all substance records in GSRS
gsrs_chem_info | Retrieve chemical structure information by substance name or CAS number
gsrs_codes | Retrieve external codes and identifiers for GSRS substances
gsrs_hierarchy | Retrieve the relationship hierarchy for GSRS substances
gsrs_names | Retrieve all names (synonyms) for GSRS substances
gsrs_search | Search the GSRS substance database
gsrs_structure | Retrieve chemical structure data for GSRS substances
gsrs_structure_search | Search GSRS by chemical structure
gsrs_substance | Fetch a GSRS substance record by UNII
gsrs_unii_from_name | Look up UNII codes for substance names
gsrs_vocabularies | Retrieve controlled vocabulary terms from GSRS
write_dataframes_to_excel | Write a named list of data frames to an Excel workbook