Esketamine Hydrochloride (CAS No. 33643-47-9) in bulk powder form. Esketamine Hydrochloride is a cyclohexanone derivative and S-enantiomer of racemic ketamine, with analgesic, anesthetic and antidepressant activities. It is indicated for the treatment of adults with treatment-resistant depression (TRD) and depressive symptoms in adults with major depressive disorder (MDD) with acute suicidal ideation or behavior.
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[1]. https://rulings.cbp.gov/ruling/N322935