126088-92-4 Ac-Thr-trp(cho)-phe-N-mebzl FR 113680 FR-113680 L-Phenylalaninamide, N-acetyl-L-threonyl-1-formyl-D-tryptophyl-N-methyl-N-(phenylmethyl)- N(alpha)-(N(alpha)-(N(alpha)-Acetylthreonyl)-N(1)-formyltryptophyl)-N-methyl-N-(phenylmethyl)phenylalaninamide