amphiphilic

https://doi.org/10.1351/goldbook.A00303
A term used to describe a compound containing a large organic cation or anion which possesses a long unbranched hydrocarbon chain, e.g.
CH3(CH2)nCO2−M+
CH3(CH2)nN+(CH3)3X− (n > 7)
CH3(CH2)nSO3−M+.
The existence of distinct polar (hydrophilic) and nonpolar (hydrophobic) regions in the molecule promotes the formation of micelles in dilute aqueous solution.
See also: amphipathic
Source:
PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1083 (https://doi.org/10.1351/pac199466051077)