Suvorexant (MK-4305) is a potent, selective, and orally bioavailable antagonist of OX1R and OX2R currently under clinical investigation as a novel therapy for insomnia.Suvorexant is an analytical reference standard categorized as a diazepane sedative.Formulations containing suvorexant show abuse potential similar to zolpidem in recreational polydrug users with a history of sedative and psychedelic drug use.2 Suvorexant is regulated as a Schedule IV compound in the United States. This product is intended for use in analytical forensic applications.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.