Gentiana species

Gentian violet is a purple dye that is obtained from coal tar it is so called because its color resembles that of the flower and it has nothing to do with Gentiana species. 

Melilotus officinalis (sweet clover) Myroxylon species (balsam of Peru) Pithecollobium jiringa (jering fruit) Sophora falvescens (Ku shen) Trifolium pratense (red clover) Gentiana species (gentian)... 

Genista tinctoria (dyer s broom) Gentiana species (gentian)... 

Six secoiridoids Acylated secoiridoid Gentiana species Analytical and DAD UV at 200-400 nm MS, TLC, NMR 113... 

The oxidation product (32) of gentiatibetine (34), an alkaloid elaborated by numerous Gentiana species, has been synthesized (Scheme 3). Hantzsch reaction of crotonaldehyde with ) -aminocrotonate provided the pyridine (31) which upon treatpient with formaldehyde gave the desired product (32) together with the isomeric lactone (33). 

Xanthones from Gentiana species have been separated on silica gel with benzene-ethyl acetate-ethanol (50 + 43 + 7) the corresponding... 

Of the triphenylmethane derivatives, gentian violet has been most often used in medical applications. It is a purple dye, so-called because its color resembles that of the gentian flower it has nothing to do with Gentiana species. It is a mixture of crystal violet (hexamethyl-para-rosaniline) 96% and methyl violet (tetramethyl- and pentamethyl-para-rosaniline). Methyl violet was first synthesized by Lauth in 1861 [15 ] after Perkins discovery of aniline dyes [16 ]. 

Gentianae radix, the dried rhizomes and roots of Gentiana lutea, has been used in folk medicine in many countries for long time [100]. Underground parts of G. scabra and eight allied species, commonly known as longdan in Chinese traditional medicine, have been used in the treatment of hepatic and cholesteric diseases [101]. 

Iridoids and secoiridoid glycosides reported from different species of Gentiana are shown in table 2. 

For example, the methanolic extract of Gentiana rhodantha Fr., a Chinese Gentianaceae species, was screened by LC/TSP-MS and LC/UV using our routine procedure for the Gentianaceae [24] in order to obtain rapid and precise information on its composition. 

The concerns stated for Gentiana lutea (see previous entry), though not specified in available references, may also be relevant to this species (McGuffin et al. 1997). 

Zhou, D., Hou, Q., Si, Q., Liu, J., Yang, H. Concentrations of the active constituents of the Tibetan folk medicine qinjiao (Gentiana sect. Cruciata) within and between taxonomic species across the Qinghai-Tibetan plateau. Chem. Biodivers. 7(8), 2088-2094 (2010)... 

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