Chemical Abstracts Service Registry Numbers: CAS 99-66-1; CAS 76584-70-8 (Sodium valproate) • Synonyms: ○ Valproic acid: 2-Propylpentanoic acid; Dipropylacetic acid (n-DPA); 2-Propylvaleric acid; Di-n-propylacetic acid; Depakene ○ (Semi)sodium valproate: Divalproex sodium; Sodium hydro...