In particular the
Hazardous Substances Data Bank (HSDB) for pure chemicals
and ChemID for
searching CAS No.s / chemical formulae / structures
Draft version of the
Australian Designated List of Hazardous Substances current to the 28th
ATP.
For the Australian
Commonwealth Chemical Gazette; Priority Existing Chemical Reports; etc.
http://www.merck.de/english/services/chemdat/english/msds/index.htm