Kentsin, a contraceptive tetrapeptide, is originally extracted from hamster embryos. Kentsin prevents the maturation of Graafian follicles and consequently inhibits ovulation. Kentsin has opiate properties on gastrointestinal motility.

7,2',4'-Trihydroxy-5-methoxy-3-arylcoumarin shows activity in inhibiting prostate specific antigen (PSA) secreted from androgen dependent prostate cancer cell line, LNCaP cells.

Azido-PEG5-azide is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.