Notes: Menthone is a monoterpene that has been found in A. rugosa and has diverse biological activities.{62380,39879,42317,37732} It inhibits the seed germination of R. sativus when used at concentrations of 0.1 and 1 mM.{39879} Menthone has insecticidal activity against C. molestus fourth-instar larvae (LC50 = 156 mg/L).{42317} It stimulates the proliferation of isolated human T lymphocytes derived from allergic patients when used at concentrations of 6.2 and 62 µg/ml.{37732}