2-[(3-pyridin-3-yl-[1,2,4]triazolo[3,4-f]pyridazin-6-yl)sulfanyl]butanoic acid 2-[[3-(3-pyridyl)-[1,2,4]triazolo[3,4-f]pyridazin-6-yl]sulfanyl]butanoic acid 2-[[3-(3-pyridyl)-[1,2,4]triazolo[3,4-f]pyridazin-6-yl]thio]butanoic acid 2-[[3-(3-pyridyl)-[1,2,4]triazolo[3,4-f]pyridazin-6-yl]thio]butyric acid NCGC00164707-01 MLS000100449 SMR000018941