title: Lacinilene C 7-methyl ether.
abstract: The title compound, C16H20O3 [systematic name: 1-hy-droxy-7-meth-oxy-1,6-dimethyl-4-(propan-2-yl)naphthalen-2(1H)-one], is a sesquiterpene isolated from foliar tissues of the cotton plant and is of inter-est with respect to its anti-bacterial properties. Its phenyl ring is ideally planar, and the maximum of deviation in the second ring is 0.386 (3) Å. The hy-droxy group and the methyl group are oriented in an equatorial fashion and axial, respectively, to the second ring. In the crystal, inversion dimers are formed through pairs of O-H⋯O hydrogen bonds. Weak C-H⋯O hydrogen bonds link the dimers into columns along the c axis. These columns form a crystal structure with a crystal packing factor of 0.66.
authors.affiliation: A.S. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, Mirzo Ulugbek str. 83, Tashkent 100125, Uzbekistan.
authors.forename: Vyacheslav V
authors.initials: VV
authors.lastname: Uzbekov
authors.affiliation: A.S. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, Mirzo Ulugbek str. 83, Tashkent 100125, Uzbekistan.
authors.forename: Samat A
authors.initials: SA
authors.lastname: Talipov
authors.affiliation: A.S. Sadykov Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, Mirzo Ulugbek str. 83, Tashkent 100125, Uzbekistan.
authors.forename: Bakhtiyar T
authors.initials: BT
authors.lastname: Ibragimov
authors.affiliation: Southern Plains Agricultural Research Center, Agricultural Research Service, USDA, College Station, TX 77845, USA.
authors.forename: Robert D
authors.initials: RD
authors.lastname: Stipanovic
authors.affiliation: Southern Plains Agricultural Research Center, Agricultural Research Service, USDA, College Station, TX 77845, USA.
authors.forename: Alois A
authors.initials: AA
authors.lastname: Bell