N-Phenethyl-4-piperidinone

N-Phenethyl-4-piperidinone
Names
	Preferred IUPAC name 1-(2-Phenylethyl)piperidin-4-one
	Other names 1-Phenethylpiperidin-4-one (no longer recommended); N-Phenylethyl-4-piperidinone; N-Phenethyl-4-piperidone
Identifiers
CAS Number	39742-60-4 ;
3D model (JSmol)	Interactive image;
Abbreviations	NPP
ChemSpider	87058 ;
ECHA InfoCard	100.049.630
PubChem CID	96437;
UNII	CIS0S4O95K ;
CompTox Dashboard (EPA)	DTXSID30192826 ;
	InChI InChI=1S/C13H17NO/c15-13-7-10-14(11-8-13)9-6-12-4-2-1-3-5-12/h1-5H,6-11H2 Key: YDJXNYNKKXZBMP-UHFFFAOYSA-N ; InChI=1/C13H17NO/c15-13-7-10-14(11-8-13)9-6-12-4-2-1-3-5-12/h1-5H,6-11H2 Key: YDJXNYNKKXZBMP-UHFFFAOYAQ;
	SMILES O=C2CCN(CCc1ccccc1)CC2;
Properties
Chemical formula	C13H17NO
Molar mass	203.28 g/mol
Density	1.057 g/cm3
Melting point	56 to 60 °C (133 to 140 °F; 329 to 333 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302
Precautionary statements	P264, P270
NFPA 704 (fire diamond)	1 3
Legal status	AU: S9 (Prohibited substance); BR: Class D1 (Drug precursors);
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

N-Phenethyl-4-piperidinone (NPP) is a derivative of 4-piperidinone with the molecular formula C₁₃H₁₇NO. It is used as an intermediate in the manufacture of chemicals and pharmaceutical drugs such as fentanyl.

Because of its possible use in the illicit manufacture of fentanyl, the United States Drug Enforcement Administration (DEA) placed NPP under control as a List 1 Chemical in 2007. Both domestic sales and domestic importations are thus subject to DEA reporting requirements.