InChI, the IUPAC International Chemical Identifier.

This paper documents the design, layout and algorithms of the IUPAC International Chemical Identifier, InChI.

InChI - the worldwide chemical structure identifier standard.

Since its public introduction in 2005 the IUPAC InChI chemical structure identifier standard has become the international, worldwide standard for defined chemical structures. This article will describe the extensive use and dissemination of the InChI and InChIKey structure representations by and for the world-wide chemistry community, the chemical information community, and major publishers and disseminators of chemical and related scientific offerings in manuscripts and databases.

InChIKey collision resistance: an experimental testing.

InChIKey is a 27-character compacted (hashed) version of InChI which is intended for Internet and database searching/indexing and is based on an SHA-256 hash of the InChI character string. The first block of InChIKey encodes molecular skeleton while the second block represents various kinds of isomerism (stereo, tautomeric, etc.).

ChEBI: a database and ontology for chemical entities of biological interest.

Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of molecular entities focused on 'small' chemical compounds. The molecular entities in question are either natural products or synthetic products used to intervene in the processes of living organisms. Genome-encoded macromolecules (nucleic acids, proteins and peptides derived from proteins by cleavage) are not as a rule included in ChEBI.

The Camden Schizophrenia Surveys. III: Five-year outcome of a sample of individuals from a prevalence survey and the importance of social relationships.

Background: Most studies of outcome in schizophrenia have focused on incidence cohorts or samples identified through specialist mental health services; population-based samples provide a more complete picture of the effectiveness of community services.

Aims: To examine whether outcome predictors, derived from studies of selected patients with prolonged schizophrenia, would emerge in a largely community-dwelling population sample.

Methods: A follow-up sample of 114 adults with schizophrenia was identified via two censuses of key informants conducted for two prevalence surveys in North London, five years apart.