Categories Articles Mephobarbital Post author By forendex.southernforensic CSA Names: Mephobarbital Methylphenobarbital CSA Location: Schedule IV Section (c) Subsection (36) DEA code 2250 CSA History: Scheduled in Public Law 91-513, the original CSA of 1970 Names: 5-Ethyl-1-methyl-5-phenylpyrimidine-2,4,6(1H,3H,5H)-trione (IUPAC) Molecular formula: C13H14N2O3 Nominal mass: 246 Average mass: 246.2619 Monoisotopic mass: 246.100442 CAS registry number: 115-38-8 ChemSpider: 7972 PubChem: 8271 Wikipedia: Methylphenobarbital Erowid: Barbiturates Drugs-Forum: Bluelight: Methylphenobarbital Standard InChI: InChI=1S/C13H14N2O3/c1-3-13(9-7-5-4-6-8-9)10(16)14-12(18)15(2)11(13)17/h4-8H,3H2,1-2H3,(H,14,16,18) Standard InChI key: ALARQZQTBTVLJV-UHFFFAOYSA-N SMILES: CCC1(C(=O)NC(=O)N(C1=O)C)c1ccccc1 Tags: USCSA ← Thenylfentanyl → Prostanozol, /O-tetrahydropyran-2-yl