Sildenafil CRM, 1.0 mg/mL in Methanol, Ampule - 1 mL

Tadalafil CRM, 1.0 mg/mL in Acetonitrile, Ampule - 1 mL

Vardenafil dihydrochloride solution 1.0 mg/mL in methanol (as free base), CRM, Cerilliant® - 1 mL

(±)-Methadone solution- 1 mg/mL in methanol, Certified Reference Material, Cerilliant® - 1 mL

(±)-MDMA solution- 1.0 mg/mL in methanol, Certified Reference Material, Cerilliant® - 1 mL