Dioctyl phthalate, DOP, 99%,

Albena I. Nielsen, Tage Christensen, Bo Jakobsen, Kristine Niss, Niels Boye Olsen,
Ranko Richert, and Jeppe C. Dyre,THE JOURNAL OF CHEMICAL PHYSICS 130, 154508 (2009)

Every data  set is orginized as two files one with imaginary parts (DOPimag.txt) only and another one with real parts (DOPreal.txt).

Files have 5 header lines that contains information about the liquid, the article, where the data are used. The next lines gives the colomns: the first are the frequencies and the next are the dielectric data at the different temperatures.