?Thiophene-2-ethylamine (CAS NO.30433-91-1) is also called as Thiophene ethylamine ; Thiophene-2-ethylamine hcl salt ; 2-(2-Aminoethyl)thiophene ; 2-(2'-Thienyl)ethyl amine ; 2-(2-Thienyl)ethylamine ; 2-(2-Thienyl)-1-ethanamine .