PubChem Notes:

Phenobarbital A barbituric acid derivative that acts as a nonselective central nervous system depressant. It promotes binding to inhibitory GAMMA-AMINOBUTYRIC ACID subtype receptors, and modulates chloride currents through receptor channels. It also inhibits glutamate induced depolarizations.

MediLexicon phenobarbital - Medical Dictionary Definition for Term 'phenobarbital'

[1. A long-acting oral or parenteral sedative, anticonvulsant, and hypnotic; also available as a soluble sodium salt; also used in therapeutic management of epilepsy and induction of hepatic microsomal enzymes.

Molecular Formula: C12H12N2O3

InChI: InChI=1/C12H12N2O3/c1-2-12(8-6-4-3-5-7-8)9(15)13-11(17)14-10(12)16/h3-7H,2H2,1H3,(H2,13,14,15,16,17)/f/h13-14H

SMILES: CCC1(C(=O)NC(=O)NC1=O)c2ccccc2

CAS number 50-06-6

    Luminal (TN)
    2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-ethyl-5-phenyl-
    5-Ethyl-5-phenylbarbituric acid
    5-Phenyl-5-ethylbarbituric acid

    PubChem CID 4763
    Beilstein =233363
    CAS 50-06-6 (from NIST)
    ChEBI 8069
    Gmelin 336231
    Kegg C07434
    Kegg D00506
    PubChem ID 10448419
    PubChem ID 9638