FIGURE 12.4 HPLC chromatogram profiles showing relative levels of Echinacea constituents from (A) phenolic standardized Echinacea extract; (B) raw E. purpurea herb; and (C) CPT-121 extract powder prepared from (B). Peak (1), caftartic acid; peak (2), chlorogenic acid; peak (3), echinocaside; peak (4), cichoric acid. Unnumbered peaks represent uncharacterized constituents. Analysis performed by Alpha Laboratories, Petaluma, CA.
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