Categories Articles 2-Butanone Post author By forendex.southernforensic CSA Names: 2-Butanone MEK Methyl ethyl ketone CSA Location: Listed Chemicals Section (b) Subsection (6) DEA code 6714 CSA History: 54 FR 6144 proposed to add on 8 Feb 1989 54 FR 31657 added effective 1 Aug 1989 Names: Butan-2-one (IUPAC) Molecular formula: C4H8O Nominal mass: 72 Average mass: 72.1057 Monoisotopic mass: 72.057515 CAS registry number: 78-93-3 ChemSpider: 6321 PubChem: 6569 Wikipedia: Butanone Erowid: Drugs-Forum: Bluelight: Standard InChI: InChI=1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3 Standard InChI key: ZWEHNKRNPOVVGH-UHFFFAOYSA-N SMILES: CCC(=O)C Tags: USCSA ← White phosphorus → 5F CUMYL-PICA