An object of class 'PubChemInstance_SIDs', which is a list containing information retrieved from the PubChem database. Substance IDs can be extracted from the returned object using the SIDs function.
Arguments
identifier
A numeric or character vector specifying the identifiers for the request.
namespace
A character string specifying the namespace for the request. Default is 'cid'.
domain
A character string specifying the domain for the request. Default is 'compound'.
searchtype
A character string specifying the search type. Default is NULL.
options
Additional arguments passed to the PubChem request.