The crystal structure of the tritosylated diethanolamine N,N-bis(tosyloxyet
hyl)-p-toluenesulfonamide, C25H29NO8S3, has been determined. The conformati
on of the molecule is such that the tosyl groups are as far apart as possib
le. The molecules are interconnected by C-H . . .O hydrogen bonds and form
columns in the crystal structure.