(S)-1-(5-((Aminoiminomethyl)amino)-2-(((5-(dimethylamino)-1-naphthalenyl)sulfonyl)amino)-1-oxopentyl)-4-ethylpiperidine, diacetate 55381-73-2 Dansyl-arg-(4'-ethyl)piperidine amide N(alpha)-Dansyl-L-arginine-4-ethylpiperidine amide OM 205 OM-205