2-Hydroxyemodin is an active metabolite of emodin in the hepatic microsomes. Emodin is an anthraquinone present in fungal metabolites and constituent of rhubarb. 2-Hydroxyemodin proves to be mutagenic to Salmonella typhimurium TA1537 in the absence of activation system.

Daucoidin A is a natural product for research related to life sciences.

Motilin, human, porcine is a gastrointestinal hormone, which is released during fasting and after eating, or by drinking water. Motilin, human, porcine promotes enteric cholinergic activity in human stomach with an EC50 of 33 nM, and thus modulates gastrointestinal motility function.