3-Hydroxy agomelatine is an Agomelatine metabolite and a 5-HT2C receptor antagonist (IC50: 3.2 μM; Ki: 1.8 μM).

The metabolite 3-Hydroxy agomelatine (S 21540) has a 10-fold lower affinity (Ki = 1.8 μM). Agomelatine, S 21517, and 3-Hydroxy agomelatine (0.1-100 μM) are antagonists at 5-HT2C receptors, with a rank order of efficacy as follows: S 21517>Agomelatine>3-Hydroxy agomelatine.

Increasing doses (1.25~40 mg/kg, i.p.) of 3-Hydroxy agomelatine does not affect the penile erections induced by mCPP and Ro 60-0175 in Wistar rat.

166526-99-4

C15H17NO3

259.3

3-Hydroxy agomelatine

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years