Octanoyl-L-carnitine is a medium-chain acylcarnitine and the physiologically active form of octanoyl-DL-carnitine .[1] Plasma levels of octanoyl-L-carnitine are elevated in patients with end-stage renal disease on continuous ambulatory peritoneal dialysis (PD) compared with both patients on automated PD and healthy individuals.[2] Octanoyl-L-carnitine does not undergo hydrolysis in the blood or during sample preparation when used as a standard for the quantification of octanoylcarnitine.[1]
Reference:
[1]. Chace, D.H., DiPerna, J.C., Adam, B.W., et al. Errors caused by the use of D,L-octanoylcarnitine for blood-spot calibrators. Clin. Chem. 47(4), 758-760 (2001).
[2]. Di Liberato, L., Arduini, A., Rossi, C., et al. L-Carnitine status in end-stage renal disease patients on automated peritoneal dialysis. J. Nephrol. 27(6), 699-706 (2014).