Chemical Name: (8S, 9 S, 10R, 11S, 13S, 14S, 17R)-11-hydroxy-17-(2-Hydroxyacetyl)-10,13-dimethyl-3,6-dioxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl pentanoate
Synonym: Lacosamide N-Desacetyl O-Desmethyl Impurity