Words to Describe sesquiterpenes

How sesquiterpenes often is described ("________ sesquiterpenes")

• mono
• certain
• type
• various
• many
• fungitoxic
• monocyclic
• several
• novel
• tetracyclic
• natural
• important
• acyclic
• tricyclic
• bioactive
• oxygenated
• new
• bicyclic
• related
• volatile
• other
• cyclic