| extr_casrn_from_cid | Retrieve CASRN for PubChem CIDs | 
| extr_chem_info | Query Chemical Information from IUPAC Names | 
| extr_comptox | Download and Extract Data from CompTox Chemistry Dashboard | 
| extr_ctd | Extract Data from the CTD API | 
| extr_ice | Extract Data from NTP ICE Database | 
| extr_ice_assay_names | Extract Assay Names from the ICE Database | 
| extr_iris | Extract Data from EPA IRIS Database | 
| extr_monograph | Retrieve WHO IARC Monograph Information | 
| extr_pprtv | Extract Data from EPA PPRTVs | 
| extr_pubchem_fema | Extract FEMA from PubChem | 
| extr_pubchem_ghs | Extract GHS Codes from PubChem | 
| extr_tetramer | Extract Tetramer Data from the CTD API | 
| extr_tox | Extract Toxicological Information from Multiple Databases | 
| with_extr_sandbox | Run Code in a Temporary Sandbox Environment | 
| write_dataframes_to_excel | Write Dataframes to Excel |