Lauroyl-L-carnitine-12,12,12-d3 is intended for use as an internal standard for the quantification of lauroyl-L-carnitine (Item No. 26550) by LC- or GC-MS. Lauroyl-L-carnitine is an acylcarnitine and a quaternary ammonium-containing cationic surfactant.1 It has been used to permeabilize porcine enterocytes for delivery of the polar fluorescent probe lucifer yellow (Item No. 25573).WARNING This product is not for human or veterinary use.