From the stems of Rubia wallichiana DECNE, thirty-four structurally related compounds were isolated and identified. Three of them, namely rubiawallin-A (1), -B (2), and -C (3), constitute the first report of their occurrence from the natural source. Their structures were determined by comprehensive analyses of their 1D and 2D NMR, and electron impact (EI) mass spectral data. Furthermore, an in ...

The biomimetic synthesis and full structural elucidation of rubicordifolin, a cytotoxic natural product isolated from Rubia cordifolia, is described.

Comparative morphological microscopical and phytochemical studies of root and stem parts of R. cordifolia and R. tinctorum L. (Rubiaceae) have been carried out.

Madder (Rubia tinctorum L.) has been used as a dye for over 2000 years with alizarin and purpurin the major natural dyes analysed from extractions undertaken. The use of ethanol as the solvent in the extraction process produced an extract that yielded four anthraquinone compounds lucidin primeveroside, ruberythric acid, alizarin and lucidin-ω-ethyl ether. Gravitational separation of the extract...

the medicinal part of rubia tinctorum is the dried root. the small yellowishgreen flowers are in loose, leafy, long-peduncled terminal or auxiliary cymes. the margin of the calyx is indistinct, 4- to 5-sectioned and has a tip that is curved inward. there are five stamens and an inferior ovary. the fruit is a black, pea-sized glabrous, smooth drupe containing two seeds. the perennial plant grows...

background: inflammation is a dynamic process that is elicited in response to various harmful stimulantsthat may threaten the well-being of the host. herbs have been traditionally used as anti-inflammatory agents since very early times. rubia tinctorum l. is one of these herbs that havebeen used for treating inflammatory diseases in iranian traditional medicine. objective: this study aims at co...