2-(Hydroxymethyl)anthraquinone Inhibitor

Solid. Powder

98.00%

Store at -20 degree C for 3 years powder
-80 degree C for 2 years in solvent

238.2

<1mg/ml refers to the product slightly soluble or insoluble

C15H10O3

OCc(cc1)cc(C(c2c3cccc2)=O)c1C3=O

17241-59-7

Antifection

The growth-inhibiting activity of Tabebuia impetiginosa Martius ex DC dried inner bark-derived constituents against Helicobacter pylori 43504 was examined using paper disc diffusion and minimum inhibitory concentration (MIC) bioassays. The activity of the isolated compounds was compared to that of the commercially available anti-Helicobacter pylori agents, amoxicillin, metronidazole, and tetracycline. The biologically active components of Tabebuia impetiginosa dried inner bark (taheebo) were characterized by spectroscopic analysis as 2-(Hydroxymethyl)anthraquinone, anthraquinone-2-carboxylic acid, and 2-hydroxy-3-(3-methyl-2-butenyl)-1,4-naphthoquinone (lapachol). With the paper disc diffusion assay 2-(Hydroxymethyl)anthraquinone exhibited strong activity against Helicobacter pylori 43504 at 0.01mg/disc. Anthraquinone-2-carboxylic acid, lapachol and metronidazole were less effective, exhibiting moderate anti-Helicobacter pylori activity at 0.1mg/disc. Amoxicillin and tetracycline were the most potent compounds tested, displaying very strong activity at 0.005mg/disc. 2-(Hydroxymethyl)anthraquinone exhibited moderate activity at this dose. Tetracycline still had strong activity at 0.001mg/disc while amoxicillin had little activity at this dose.

Microbiology/Virology; Antifection