I have synthesized new compound containing 2 quartenary amine and 2 long chain ester (dodecyl). However, I get difficulties to find the suitable solvent to my system. My compound just soluble at hot water. Logically, because it has long chain ester, it must be soluble at organic solvent. But, it can't dissolve at almost of organic compound (I have tried it)! Can you suggest me what kind of organic solvent which I must try ? Or can you have logical explanation to my problem ? Can you sugest me, what must I do to characterize this compound if I can't find the solvent ? Pliz, help me ! I almost crazy because of this problem. Thank you.