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UV absorption spectra of (A) standard thymol, (B) essentail oil of Origanum vulgare (SA), (C) essentail oil of Thymus vulgaris (SA), (D) UBE of Origanum vulgare (SA), (E) UBE of Thymus vulgaris (SA), (F) TE of Origanum vulgare (SA), (G) TE of Thymus vulgaris (SA), and (H) commercial formulation, superimposed.
