Abstract
The title compound, C15H10O4·H2O, also known as alizarin 1-methyl ether monohydrate, was isolated from Morinda officinalis How. The anthraquinone ring system is almost planar, the dihedral angle between the two outer benzene rings being 3.07 (4)°. In the crystal structure, O—H⋯O hydrogen bonds link the organic molecules and the water molecules, forming a three-dimensional network.
Highlights
For the structure of another compound isolated from Morinda officinalis How., see: Xu et al (2009)
One component found in Morinda officinalis How, 1-Methoxy-2-hydroxyanthraquinone, is known as alizarin-1-methylether and exhibits a variety of potent biological effects such as antiviral and antimicrobial activities (Ali et al, 2000), antioxidant activity (Jia et al, 2007) and cyototoxic activity (Wu et al, 2003)
The crude extracts were separated with n-hexane-ethyl acetate-methanol-water (6 : 4 : 5 : 5, v/v) using high-speed counter-current chromatography (HSCCC) to obtain 1-Methoxy-2-hydroxyanthraquinone
Summary
H atoms treated by a mixture of independent and constrained refinement max = 0.27 e Å3. R factor = 0.046; wR factor = 0.147; data-to-parameter ratio = 11.5. The title compound, C15H10O4H2O, known as alizarin 1methyl ether monohydrate, was isolated from Morinda officinalis How. The anthraquinone ring system is almost planar, the dihedral angle between the two outer benzene rings being 3.07 (4). O—H O hydrogen bonds link the organic molecules and the water molecules, forming a three-dimensional network
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