GnRH-I is a small 10 amino acid long peptide (decapeptide) from the hypothalamus,It is also known as luteinizing hormone releasing hormone (LHRH), is a key molecule in the regulation of reproduction in vertebrates. GnRH, a decapeptide, is produced by neurons in the medial basal hypothalamus (MBH) and secreted in a pulsatile manner into the cardiovascular system.

Clopidogrel carboxylic acid (CLPM) is the inactive liver metabolite of anti platelet agent, Clopidogrel, in human serum.

Coryneine 是从附子根中提取的多巴胺的季铵衍生物。