PhD position


hello hi! I have a specialist degree in chemistry, this is 5 years of study. It has  H+ (institution is recognized in Germany) and  A5 (degree with a typical duration of studies of more than four years) classes In the Anabin system. And I would like to know if I can apply for a PhD position? Or Should I apply for a Master program first?  

Thanks for advices, have a good day!