N-hexacosenoyl-D-galactosylsphingosine
n-hexacosenoyl-d-galactosylsphingosine
An <em>N</em>-acyl-<small>D</small>-galactosylsphingosine in which the ceramide <em>N</em>-acyl group is  composed of 26 carbons and 1 double bond.