The Collaborative International Dictionary
Heptylic
Heptylic \Hep*tyl"ic\, a. (Chem.) Pertaining to, or derived from, heptyl or heptane; as, heptylic alcohol. Cf. [OE]nanthylic.
Wiktionary
heptylic
a. (context chemistry English) Pertaining to, or derived from, heptyl or heptane.