What does Qa stand for?
Qa stands for "Quaternary ammonium"
How to abbreviate "Quaternary ammonium"?
"Quaternary ammonium" can be abbreviated as Qa
What is the meaning of Qa abbreviation?
The meaning of Qa abbreviation is "Quaternary ammonium"
What does Qa mean?
Qa as abbreviation means "Quaternary ammonium"
