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OBJECTIVE: To study the chemical constituents of Tibetan Madicine Wangla.METHOD: Sepearing the chemical constituents by means of chromatography and identifying their structures on the basis of MS and NMR spectra and TLC with authentic samples. RESULT: Eight compounds were isolated as 4-[(4-hydroxyphenyl) methoxy]benzenemethanol(I), 4,4'-dihydroxydiphenyl methane(II), 4,4'-dihydroxydibenzyl ether(III), gastrodin(IV), 4-hydroxy benzenemethanol(V), 4-hydroxybenz aldehyde(VI), beta-sitosterol(VII) and beta-daucosterol(VIII). CONCLUSION: All the compounds were obtained from genus Coeloglassum for the first time. The compound I is a new natural product.