103433-42-7 Arg-pro-hyp-gly-thi-ser-phe-thi-arg tfa Arg-pro-hyp-gly-thi-ser-phe-thi-arg-OH Arginyl-prolyl-4-hydroxyprolyl-glycyl-beta-(2-thienyl)alanyl-seryl-phenylalanyl-beta-(2-thienyl)alanyl-arginine trifluoroacetic acid B 4146 B 4147 B-4146 B-4147 B4146 B4147 Bradykinin, 3-(trans-4-hydroxy-L-proline)-5-(3-(2-thienyl)-L-alanine)-7-D-phenylalanine-8-(3-(2-thienyl)-L-alanine)-