Hi, I want to know the procedure how apply for a German University. I am in Pharmaceutical Chemistry field. Can anyone help me?

You can directly contact the professors and say about your wish to work with them. the university will give the formal procedures.

Try this site:

www.bioberufe.de
look at the stellensuche and then choose Kategorie "Forschung" and Klassification "Promotion".

This site is for biologists looking for PhDs, Postdoc positions, technical positions. By the way, do you speak german & why do you want to go to germany?

Think of a subject and make a project. Make a contact with a lecturer, aplly for fundings if you need or wish and ´take the plain ;)

please update notices

Gus's answer is good. follow it.