“…Other metameric configurations are also possible such as cis-2,5-, cis-2,6-, and trans-2,6-bis(hydroxymethyl )-pdioxane. Samples of ~'~-and a,fl'-diglycerol separated by paper chromatography were obtained from Siegel (6). GLC of the TMS ethers of these compounds individually and in mixtures showed that a,fl-diglycerol is eluted before the a,a'-isomer and appears as a shoulder on peak No.…”