Can any one explain the derivation of "G" surrounded by penicillin G?
Answer:
The "G" means gold ingots standard which is a diagnostic test used contained by medicine. There are variant on penicillin such as PCN G or PCN V etc...You can read more about gold ingots standard tests on the internet to read the process.
In my experience, it means "this is GOING to hurt". That's why they come out with propen - mixed next to procaine