Hello all, I have a question about the solubility of a certain compound. The compound in question is a quaternary ammonium compound 60-80% concentration, 10-20% isopropanol, and 1-10% water. Is isopropanol the best organic solvent for this compound or would a combination of isopropanol and water be a better solvent? There is also a possibility that another organic solvent is more suitable for the quaternary ammonium compound. Thank you in advance.