1-Butanaminium, 2-(acetyloxy)-4-((4-((aminoiminomethyl)amino)-1-carboxybutyl)amino)-N,N,N-trimethyl-4-oxo-, (R,(R*,S*))- 149341-40-2 ALCAA Acetyl-L-carnitine arginine amide Acetylcarnitine arginyl amide ST 857