ChEBI: N-stearoylsphingosine-1-phosphocholine is a sphingomyelin d18:1 in which the ceramide N-acyl group is specified as stearoyl (octadecanoyl). It has a role as a mouse metabolite. It is a sphingomyelin 36:1 and a sphingomyelin d18:1. It is functionally related to an octadecanoic acid.