The CAS register number of 2-Ethylbutyryl chloride is 2736-40-5. It also can be called as 2-Ethylbutyroyl chloride and the systematic name about this chemical is Butanoyl chloride, 2-ethyl-.

Physical properties about 2-Ethylbutyryl chloride are: (1)ACD/LogP: 2.40; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.4; (4)ACD/LogD (pH 7.4): 2.4; (5)ACD/BCF (pH 5.5): 39.17; (6)ACD/BCF (pH 7.4): 39.17; (7)ACD/KOC (pH 5.5): 480.71; (8)ACD/KOC (pH 7.4): 480.71; (9)#H bond acceptors: 1; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 17.07Ų; (13)Index of Refraction: 1.422; (14)Molar Refractivity: 34.68 cm³; (15)Molar Volume: 136.4 cm³; (16)Surface Tension: 27.2 dyne/cm; (17)Density: 0.986 g/cm³; (18)Flash Point: 41.1 °C; (19)Enthalpy of Vaporization: 37.76 kJ/mol; (20)Boiling Point: 140.4 °C at 760 mmHg; (21)Vapour Pressure: 6.15 mmHg at 25°C.

Preparation of 2-Ethylbutyryl chloride: this chemical can be prepared by 2-ethyl-butyric acid.This reaction needs reagent SOC_l2. The yield is 85 %.

When you are using this chemical, please be cautious about it as the following:
It is flammable and easy lead to cause burns. Keep it away from sources of ignition. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice and take off immediately all contaminated clothing. People must wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)

People can use the following data to convert to the molecule structure.
1.SMILES: ClC(=O)C(CC)CC
2.InChI:InChI=1/C6H11ClO/c1-3-5(4-2)6(7)8/h5H,3-4H2,1-2H3 
3.InChIKey:SMUKODJVMQOSAB-UHFFFAOYAT
4.Std. InChI:InChI=1S/C6H11ClO/c1-3-5(4-2)6(7)8/h5H,3-4H2,1-2H3