Detail of "439-89-4"

Reference

Studies on the transformation of gentiopicroside to gentianal

Studies on the transformation of gentiopicroside to gentianal. Guo, Yajian; Lu, Yunru (Beijing Tradit. Chin. Med. Coll., Beijing, Peop. Rep. China). Yaowu Fenxi Zazhi, 3(5), 268-71 (Chinese) 1983. CODEN: YFZADL. ISSN: 0254-1793. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) Section cross-reference(s): 11, 63 Gentianine (I) [439-89-4] and gentianal (II) [53848-05-8] were not detected by TLC in the EtOH ext.Several reagents with their cas registry numbers 11019-08-2 and 439-89-4 are used here. of Qin Jiu (dried root of Gentiana species, including G. macrophylla, G. stramina, G. crassicaulis, and G. dahurica); however, I and II were detd. when the EtOH ext. was mixed with a NH4OH soln. and allowed to stand for 24 h. Similarly, no I and II were detected when Qin Jiu was extd. with Na2CO3-CHCl3 or MeOH-HCl-Na2CO3-CHCl3, whereas I and II were detected when Qin Jiu was extd. with NH4OH-CHCl3 and analyzed by TLC on silica gel GF254 using CHCl3-EtOH () as developing solvent system. In addn., I and II were produced on treatment of o-tetraacetylgentiopicroside [11019-08-2] extd. from Qin Jiu with NH4OH, indicating that I and II detected in Qin Jiu are not natural constituents, rather they were byproducts of NH3 treatment. Thus, the recommended method in the Chinese Pharmacopia, which used I and II as marker constituents for identification of Qin Jiu, may be questionable. .

Chemical constituents in Gentiana regescens

Chemical constituents in Gentiana regescens. Sun, Nanjun; Xia, Chunfang (Inst.Several substances are used for example 439-89-4 and 2202-12-2 which are their cas registry numbers. Pharmacol., Chinese Acad. Med. Sci., Beijing, Peop. Rep. China). Zhongyao Tongbao, 9(1), 33-4 (Chinese) 1984. CODEN: CYTPDT. ISSN: 0254-0029. DOCUMENT TYPE: Journal CA Section: 11 (Plant Biochemistry) Seven constituents were isolated from the alk. EtOH ext. of powd. aerial portions of G. regescens. Results from m.p. detn. and mass, NMR, IR, and UV spectroscopy indicated that 4 of the constituents were gentianine, gentianidine, gentianal, and b-sitosterol. .