PubChem Entrez displays now include a "Selected Records" panel to help users discover informative annotations and subsets among search results. For example, following a keyword search of PubChem Compound for "aspirin", the "Selected Compounds" panel includes a line saying "Protein 3D Structures, Compound Count: 4." This indicates that 4 of the 85 compound records retrieved by the "aspirin" search were derived from Protein 3D structures. Clicking on "4" shows which 4 out of the 85 compounds were observed binding to proteins. Clicking on "Protein 3D Structures" shows the 20 experimental protein 3D structures observed to bind these compounds.

Structures from the Ganolix are now available in PubChem.

Structures from the Molecular Libraries Program, University of Kansas Specialized Chemistry Center are now available in PubChem.

A genome-wide siRNA screen for modifiers of the circadian clock in human cells from the Genomics Institute of the Novartis Research Foundation (GNF) is now available in PubChem.

Structures from Biological Magnetic Resonance Data Bank (BMRB) are now available in PubChem.

Structures from Tyger Scientific are now available in PubChem.

Structures from PennChem-GAM are now available in PubChem.

Structures from IS Chemical Technology are now available in PubChem.

Protein-ligand binding affinity data from the PDBbind database have now been deposited into PubChem BioAssay database by the Shanghai Institute of Organic Chemistry.

The ALA (American Library Association) selected PubChem as one of the Best Free Reference Web Sites 2009.

Structures from ZINC are updated in PubChem.

Structures from Vitas-M Laboratory are now available in PubChem.

Structures from Shanghai Sinofluoro Scientific Company are now available in PubChem.

Structures from Alinda Chemical are now available in PubChem.

Structures and small molecule screening data from Chemical Biology Department, Max Planck Institute of Molecular Physiology are now available in PubChem.

Structures from novo|seek are now available in PubChem. Novo|seek is a search engine for biomedical literature in Medline and US Grants.

Small molecule screening data from Johns Hopkins Ion Channel Center are now available in PubChem.

Small molecule screening data from Broad Institute are now available in PubChem.

Structures and small molecule screening data from NINDS Approved Drug Screening Program are now available in PubChem.

Small molecule screening data from Southern Research Specialized Biocontainment Screening Center are now available in PubChem.

Substances and RNAi screening data from RNAi Global Initiative / Thermo Scientific Dharmacon RNAi Technologies are now available in PubChem.

Structures from Nature Chemistry are now available in PubChem.

Structures from Thermo Scientific Dharmacon RNAi Technologies are now available in PubChem.

PubChem3D is released consisting of a single theoretical 3D conformer per compound record and includes a new similarity relationship (Similar Conformers).

XLogP is now updated to version 3.0 of the algorithm.  InChI and InChIKey are now updated to use the version 1.0.2 standard.