Instructions for FTP of ChemIDplus Subset Data Files

Access instructions are for NLM ChemIDplus licensees only; do not share directory or file names with others.  Be sure to use the IP address you registered with NLM.  All other IP addresses will be blocked from retrieving the files.

A full file replacement containing all new and/or maintained records will be on NLM's server on or shortly after the 28th of each month that such records are available.  The ChemIDplus Subset updates occur at irregular and sometimes infrequent intervals.  A ‘ready’ file containing the number of records in the corresponding update file is also prepared.  The ChemIDplus DTD is also available on the server.

FTP to NLM's anonymous ftp server; login as a non-fee/anonymous user; use your e-mail address as password; binary mode.

ftp://ftp.nlm.nih.gov/nlmdata/.chemidlease/
At the FTP prompt enter: get filename. Note that the date of the file update is reflected in the filenames (e.g., 20080728 is July 28, 2008)

Example:
get chemid.dtd.20080728 – for dtd
get chemid.ready.20080728 – for record count in data file
get chemid.xml.20080728.zip – for the data file
Note that the date of the file update is reflected in the filenames (e.g., 20080728 is July 28, 2008)

See http://www.nlm.nih.gov/databases/chemidplus.html for information about the content of ChemIDplus Subset. The ChemIDplus database may be searched at NLM at http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp and http://chem.sis.nlm.nih.gov/chemidplus/.

CONTACT:  Jane L. Rosov, NLMdatadistrib@nlm.nih.gov, 301-496-7706

Last reviewed: 24 October 2008
Last updated: 24 October 2008
First published: 24 October 2008
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