1-Phenethyl-4-piperidone

Molecular structure of 1-Phenethyl-4-piperidone (CAS NO.39742-60-4) is:

Product Name: 1-Phenethyl-4-piperidone
CAS Registry Number: 39742-60-4
IUPAC Name: 1-phenethylpiperidin-4-one
Molecular Weight: 203.28018 [g/mol]
Molecular Formula: C₁₃H₁₇NO
XLogP3-AA: 1.7
H-Bond Donor: 0
H-Bond Acceptor: 2 
EINECS: 254-613-5
Melting Point: 57-60 °C(lit.)
Surface Tension: 40.8 dyne/cm
Density: 1.057 g/cm³
Flash Point: 144.2 °C
Enthalpy of Vaporization: 57.37 kJ/mol
Boiling Point: 331.1 °C at 760 mmHg
Vapour Pressure: 0.00016 mmHg at 25°C
Product Categories: Piperidine;API intermediates;Benzenes;Building Blocks;Heterocyclic Building Blocks;Piperidones

 1-Phenethyl-4-piperidone (CAS NO.39742-60-4) is useful in the synthesis of pharmaceuticals, primarily fentanyl and its analogs. It is reacted with propionyl chloride to form fentanyl.

Safty information about 1-Phenethyl-4-piperidone (CAS NO.39742-60-4) is:
Hazard Codes: Xn; C; F
Risk Statements: 22-34-11 
R22:Harmful if swallowed. 
R34:Causes burns. 
R11:Highly flammable.
Safety Statements: 22-24/25-45-26-36/37/39-16 
S22:Do not breathe dust. 
S24/25:Avoid contact with skin and eyes. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S16:Keep away from sources of ignition.
RIDADR: 2811
WGK Germany: 3
RTECS: TN8990300
F: 10
HazardClass: 6.1(b)
PackingGroup: III
HS Code: 29333999

 1-Phenethyl-4-piperidone , its cas register number is 39742-60-4. It also can be called 1-(beta-Phenethyl)piperidone ; 4-Piperidone, 1-phenethyl- ; 1-(beta-Phenethyl)-4-piperidone ; 4-Piperidinone, 1-(2-phenylethyl)- .It is a yellow-brown crystalline powder.