404586-85-2 Ac-TTSTRR-alphaketo-SL-CONH2 L-Leucinamide, N-acetyl-L-threonyl-L-threonyl-L-seryl-L-threonyl-L-arginyl-(3S)-3-amino-6-[(aminoiminomethyl)amino]-2-oxohexanoyl-L-seryl- (9CI)