BP is ~112 degrees C at 0.1mm. What is a DSC?
A DSC is a differential scanning caliometery It allows you to measure MPts, BPts., energy of decomposition. It will tell you exactly the temperature when your compound starts to decompose.
That BPt you quoted is quite exact!
Try and get a better vacuum, use a diffusion pump. There are plenty of graphs available which let you determine the BPt. at various temperatures and pressures.