Penicillin Procaine

Molecular Formula: C29H38N4O6S
CAS Number: 6130-64-9
Appearance: Crystalline Powder, White To Slightly Yellow.

Procaine benzylpenicillin (INN), also known as procaine G penicillin, is an antibiotic useful for the treatment of a number of bacterial infections. It is a poorly soluble salt form of penicillin which is a combination of naturally occuring benzylpenicillin (penicillin G) and the local anaesthetic agent procaine in equimolar amounts. Following deep intramuscular injection, it is slowly absorbed into the circulation and hydrolysed to benzylpenicillin — thus it is used where prolonged low concentrations of benzylpenicillin are required. This combination is aimed at reducing the pain and discomfort associated with a large intramuscular injection of penicillin. It is widely used in veterinary settings.