D-Histidine is an enantiomer of L-histidine. L-Histidine is an inhibitor of mitochondrial glutamine transport and also an essential amino acid for infants.

BIS-TRIS propane (BTP), a novel multidentate ligand of nickel- and cobalt-based spin clusters, is a metal chelator. BIS-TRIS propane is often used as a zwitterionic buffer for PCR and protein crystallization studies.

PNU-282987 is a potent α7 nicotinic acetylcholine receptor (nAChR) agonist with an EC50 of 154 nM. PNU-282987 is also a functional antagonist of the 5-HT3 receptor with an IC50 of 4541 nM. PNU-282987 can be used for the research of central and peripheral nervous systems.