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  Indian J Med Microbiol
 

Figure 2: The HPLC chromatogram of standard mixture (a) and Cynanchum paniculatum Kitagawa (b). (1) paeonol, (2) 4-acetylphenol,(3) 2,5-dihydroxy-4-methoxyacetophenone, (4) 4-O-methyl ether Gallacetophenone, (5) acetoveratrone, (6) 2,5-dimethoxyhydroquinone, (7) vanillic acid, (8) resacetophenone, (9) m-acetylphenol, and (10) 3,5-dimethoxyhydroquinone

Figure 2: The HPLC chromatogram of standard mixture (a) and Cynanchum paniculatum Kitagawa (b). (1) paeonol, (2) 4-acetylphenol,(3) 2,5-dihydroxy-4-methoxyacetophenone, (4) 4-O-methyl ether Gallacetophenone, (5) acetoveratrone, (6) 2,5-dimethoxyhydroquinone, (7) vanillic acid, (8) resacetophenone, (9) m-acetylphenol, and (10) 3,5-dimethoxyhydroquinone