The 4-Piperidinone,1-ethyl-, with the CAS registry number 3612-18-8 and EINECS registry number 222-781-9, has the systematic name and IUPAC of 1-ethylpiperidin-4-one. It is a kind of clear yellow to brown viscous liquid, and belongs to the following product categories: Amines; blocks; Piperidine; Heterocyclic Compounds; Building Blocks; Heterocyclic Building Blocks; Piperidones. And the molecular formula of the chemical is C₇H₁₃NO. What's more, it should be stored at 2-8°C.

The characteristics of 4-Piperidinone,1-ethyl- are as followings: (1)ACD/LogP: 0.18; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -2.3; (4)ACD/LogD (pH 7.4): -0.59; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 5.01; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 1; (12)Polar Surface Area: 20.31 Ų; (13)Index of Refraction: 1.46; (14)Molar Refractivity: 36.08 cm³; (15)Molar Volume: 131.5 cm³; (16)Polarizability: 14.3×10^-24cm³; (17)Surface Tension: 31.7 dyne/cm; (18)Density: 0.966 g/cm³; (19)Flash Point: 68.9 °C; (20)Enthalpy of Vaporization: 44.42 kJ/mol; (21)Boiling Point: 208 °C at 760 mmHg; (22)Vapour Pressure: 0.219 mmHg at 25°C. 

Uses of 4-Piperidinone,1-ethyl-: It can react with iodomethane to produce 1-ethyl-1-methyl-4-oxo-piperidinium; iodide. This reaction will need the menstruum acetone. The reaction time is 5 hours with temperature of 20-25°C, and the yield is about 94%. 

You should be cautious while dealing with this chemical. It irritates to eyes, respiratory system and skin, and it may also cause burns. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and if in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice; In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: O=C1CCN(CC)CC1
(2)InChI: InChI=1/C7H13NO/c1-2-8-5-3-7(9)4-6-8/h2-6H2,1H3
(3)InChIKey: BDVKAMAALQXGLM-UHFFFAOYAR