http://dynami44ie7hlibcpgjeoeywlkfmvhgq2cy55646i6d2w5lfhmlvhayd.onion/adb-pinaca
it contains nine deuterium atoms at the 2, 2’, 3, 3’, 4, 4’, 5, 5, and 5 positions. It is intended for use as an internal standard for the quantification of it by GC- or LC-mass spectrometry (MS).