Penduletin has anti-inflammatory,anti-tumor cells, and anti-bacterical activities,it inhibits growth of the Gram-negative pathogen neisseria gonorrhoeae. Penduletin has strong activity in vitro against EV71 with low cytotoxicity.

Clemaphenol A is a natural product from Cynanchum auriculatum.

ortho-Hydroxyphenylacetic acid (2-hydroxybenzeneacetic acid) can be found in a number of food items such as natal plum lemon verbena half-highbush blueberry and parsley which makes ortho-hydroxyphenylacetic acid a potential biomarker for the consumption of these food products. ortho-Hydroxyphenylacetic acid can be found primarily in blood feces and urine.