3-Ethylquinoline , with cas registry number of 1873-54-7, belongs to the group of Quinoline or Isoquinoline based on its structure. Its IUPAC name and systematic name are also called 3-Ethylquinoline . The bonds properties are (1) H bond acceptors: 1, (2) H bond donors: 0, and (3) Freely Rotating Bonds: 1. The mol characters include SMILES: n1cc(cc2ccccc12)CC, InChI: InChI=1/C11H11N/c1-2-9-7-10-5-3-4-6-11(10)12-8-9/h3-8H,2H2,1H3, and InChIKey: WLWBKLRAHBGNIU-UHFFFAOYAM.

 The physical properties of 3-Ethylquinoline are: (1) Index of Refraction: 1.608, (2) Molar Refractivity: 51.73 cm³, (3) Molar Volume: 149.5 cm³, (4) Surface Tension: 42.4 dyne/cm, (5) Enthalpy of Vaporization: 48.21 kJ/mol, (6) Vapour Pressure: 0.0158 mmHg at 25°C.

  3-Ethylquinoline can be prepared by α-ethyl-anilinoacrolein. The reaction occures with the reagent of AlBr₃ for 5 hours at the temperature of 120 ℃. The yield is 89%. 3-Ethylquinoline can also be produced by the reaction of Aniline and 2-Ethyl-propenal . In this process, 70 percent aq. H₂SO₄ is used as the reagent using the catalyst of NaI at the temperature of 110 ℃. The reaction time is about 0.5 hour. The yield is about 73%.

 3-Ethylquinoline is sold in the market by suppliers such as Ningbo Hi-Tech Biochemicals Co., Ltd., Beijing Chengyu Speciality Chemical Co., Ltd., and Jinan Lekangxin Pharmaceutical Co., Ltd..