Bibliographical database, with abstracts, covering chemistry, chemical engineering, biochemistry, properties and reaction of chemical compounds/substances, pollution control, environmental impact, waste management, toxicology. Data from 1967 to date. Available online (on Dialog (no abstract), from 1967 as database called CA Search; on Datastar (no abstracts) from 1982; on STN (with abstracts), ESA, Orbit, Questel) and on CDROM