1124-65-8 2-Propenoic acid, 3-(2-thienyl)- (9CI) 2-Thienylacrylic acid 2-Thiopheneacrylic acid (8CI) 3-(2-Thienyl)acrylic acid Acrylic acid, beta-2-thienyl- EINECS 214-402-0 NSC 4247