With Safari 5 one of the most interesting new features is the support for Extensions. If you’ve ever used Firefox or Chrome you might be familiar with these.
For more details you might want to take a look at Mac OS X Tips, where these is a detailed description and links to useful Extensions.
I’ve now created a selection of extensions that should be useful for chemists.
Chemspider :- Displays structure of highlighted chemical/drug and links to ChemSpider page.
PubChem :- Search PubChem for the highlighted compound
eMolecules :- Search eMolecules for the highlighted compound
Chemicalize :- Submit the current URL to chemicalize.org
DrugBank :- Search DrugBank for the highlighted compound