1-(2-Thienyl)-2-nitroethene 2-(2-Nitroethenyl)thiophene 2-(2-Nitrovinyl)thiophene 2-Thienylnitroethylene 874-84-0 EINECS 212-867-4 NSC 22059 Thiophene, 2-(2-nitroethenyl)- (9CI) Thiophene, 2-(2-nitrovinyl)-