Get PubChem Substance ID's Associated With A Compound

Description

Each unique compound is associated with a number of substances. Given a CID it is possible to determine the associated substance ID's.

Usage

1
get.sid.list(cid, quiet=TRUE, from.file=FALSE)

Arguments

cid

A vector of one or more compound ID's

quiet

If FALSE, output is verbose

from.file

If TRUE then the first argument is considered to be the name of a file containing the XML data. If FALSE the first argument must be a sequence of compound ID's and the data will be downloaded from the PubChem FTP site

Details

Processing a large number of compound ID's can take a long time. For large numbers of CID's the resultant XML file can be many megabytes. This may take a long time to download. After download it takes approximate 60 sec to process a 23MB data file.

It should also be noted that the data files are downloaded using the R interface to Curl. In addition, the PubChem servers do not allow very large query URL's. This limits the number of compound ID's that can be directly pulled of the PubChem servers to about 1000

Value

A list object, the name of each element is the CID and the value is the SID's that are associated with the compound in question.

Author(s)

Rajarshi Guha rajarshi.guha@gmail.com

See Also

get.cid, get.assay