Methoxsalen

**Semantic type:** Organic Chemical|Pharmacologic Substance

**Definition:** A naturally occurring substance isolated from the seeds of the plant Ammi majus with photoactivating properties. As a member of the family of compounds known as psoralens or furocoumarins, methoxsalen's exact mechanism of action is unknown; upon photoactivation, methoxsalen has been observed to bind covalently to and crosslink DNA. (NCI04)

**Synonyms:** - 8-MOP - 8-MOP - 8-Methoxypsoralen - 8-Methoxypsoralen - 9-Methoxy-7H-furo[3,2-g][1]benzopyran-7-one - Ammoidin - Ammoidin - Deltasoralen - Dermox - Geralen - Geroxalen - METHOXSALEN - Meladinina - Meladinine - Meladinine - Methoxypsoralen - Metoxaleno - Mopsoralen - Oxsoralen - Oxsoralen - Oxsoralen-Ultra - Puvasoralen - Ultramop - Uvadex - XANTHOTOXIN - Xanthotoxin - methoxsalen