Melanocortin (MC) 3-MSH (Melanocyte-Stimulating Hormone) is believed to signal through the MC 3 receptor. It induces a sustained increase in intracellular free calcium levels ([Ca2+]i) in a subpopulation of pituitary cells. Most of the cells responding to 3-MSH express more than one pituitary hormone mRNA. The effect of 3-MSH is blocked by SHU9119, a MC3R and MC4R antagonist, in only 50% of the responsive cells, suggesting that in half of these cells the mediating receptor is not the MC3R. Low picomolar doses of 3-MSH increase [Ca2+]i in the growth hormone (GH)- and prolactin (PRL)-secreting GH3 cell line.

5-Fluoromethylornithine dihydrochloride (5-FMOrn dihydrochloride) is a selective inhibitor of L-Ornithine:2-oxoacid aminotransferase (OAT) and a specific inactivator of OAT, which can be used to study metabolic diseases and neurological diseases.

Cucurbit[7]uril is an emerging candidate for pharmaceutical excipients.Cucurbit[7]uril enhances photosensitization of porphyrins in Neuroblastoma cells.