3d image of p-menthane skeletal formula

p-menthane menthane 1-isopropyl-4-methylcyclohexane hydrocarbon monoterpenoid terpenoid monoterpene terpene p-cymene terpinolenes phellandrene limonene fragrant fennel-like odor eucalyptus mixture tautomer isomer stereoisomer hydroperoxide precursor polymerizations 3d coumarin healthy aging flavonoid antioxidant essential oils biological activity phytoalexin herbal medicine phytotherapy intermediate isoflavone pharmacopoeia cell geometry biosynthesis pathway bioactive mechanism biomolecule phytochemical anti-aging dietary natural