has role is protonated form of has functional parent valeric acid antidepressant anxiolytic drug antipsychotic agent antimanic drug antineoplastic agent anticonvulsant branched-chain saturated fatty acid valproic acid A branched-chain saturated fatty acid that comprises of a propyl substituent on a pentanoic acid stem. 2-propylpentanoic acid CHEBI:39867 teratogenic agent GABA agent valproate EC 3.5.1.98 (histone deacetylase) inhibitor methyl-branched fatty acid neuroprotective agent anti-HIV agent vulnerary