2,3,7,8-Tetrachlorodibenzofuran-13C12 is a related compound of 1,2,3,6,7,8-Hexachloro-dibenzofuran-13C12 (H290872), which can be used to develop detection methods of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans using gas chromatography and mass spectrometry.