N-(2-hydroxypentacosenoyl)-D-galactosylsphingosine
n-(2-hydroxypentacosenoyl)-d-galactosylsphingosine
An <em>N</em>-acyl-<small>D</small>-galactosylsphingosine in which the ceramide <em>N</em>-acyl group is composed of 25 carbons, 1 double bond and a hydroxy group at C2.