The CAS registry number of [2,3'-Bithiophene]-4'-carboxylicacid, 5'-amino-, ethyl ester is 243669-48-9. The IUPAC name is ethyl 2-amino-4-thiophen-2-ylthiophene-3-carboxylate. In addition, the molecular formula is C₁₁H₁₁NO₂S₂ and the molecular weight is 253.34. What's more, it is a kind of irritating chemical and should be stored in a cool and dry place.

Physical properties about [2,3'-Bithiophene]-4'-carboxylicacid, 5'-amino-, ethyl ester are: (1)ACD/LogP: 2.95 ; (2)#H bond acceptors: 3; (3)#H bond donors: 2; (4)#Freely Rotating Bonds: 5; (5)Polar Surface Area: 86.02 Å²; (6)Index of Refraction: 1.636; (7)Molar Refractivity: 68.25 cm³; (8)Molar Volume: 190.3 cm³; (9)Polarizability: 27.05 ×10^-24cm³; (10)Surface Tension: 54.5 dyne/cm; (11)Density: 1.33 g/cm³; (12)Flash Point: 189.2 °C; (13)Enthalpy of Vaporization: 63.86 kJ/mol; (14)Boiling Point: 389.3 °C at 760 mmHg; (15)Vapour Pressure: 2.88E-06 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(OCC)c2c(scc2c1sccc1)N
(2)InChI: InChI=1/C11H11NO2S2/c1-2-14-11(13)9-7(6-16-10(9)12)8-4-3-5-15-8/h3-6H,2,12H2,1H3
(3)InChIKey: AKFDBWIUWIWHRK-UHFFFAOYAK