118904-15-7 5-Oxo-L-prolylglycyl-L-leucyl-L-arginyl-L-tryptophanamide Antho-rwamide II Glu-gly-leu-arg-trp-NH2 L-Tryptophanamide, 5-oxo-L-prolylglycyl-L-leucyl-L-arginyl-