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PPT – Coumarins are derivatives of benzoapyrone, or ...
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PPT – Coumarins are derivatives of benzoapyrone, or ...
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http://www.powershow.com/view1/1b2efd-ZDc1Z/Coumarins_are_derivatives_of_benzoapyrone_or_lactones_of_ohydroxycinnamic_acid_ocoumaric_acid_powerpoint_ppt_presentation
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Coumarins are derivatives of benzoapyrone, ... chrysophanol, trihydroxy phenols ... One of the best known is sennoside
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