IOX4 is a potent and selective PHD2 inhibitor with IC50 ~1.6 nM. It inhibits PHD2 via binding to the 2OG binding site, displays >1, 000-fold selectivity for PHD2 over other 2OG-dependent dioxygenases, including JMJD isoforms, FBXL11, JARID1C, BBOX1, FIH, and FTO. IOX4 is active in vivo, inhibiting prolyl hydroxylation and increasing HIF-1α levels in cells (IC50 ~5.6-11.7 µM) and inducing HIF-1α and HIF-2α expression in mice. The induction of HIF expression in mice occurs in the brain as well as in the liver, kidney, and heart, indicating that IOX4 penetrates the blood-brain barrier. IOX4 could be a useful tool compound for studies aimed at validating the upregulation of HIF for treatment of cerebral diseases including stroke.
CAS Number: 1154097-71-8
Molecular Weight: 328.33
Chemical Name: tert-butyl 6-(5-oxo-4-(1H-1,2,3-triazol-1-yl)-2,5-dihydro-1H-pyrazol-1-yl)nicotinate
Appearance: Solid Power.
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: DMSO up to 100 mM
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined.
HS Tariff Code: 382200
How to use
IOX4 was used at 10-50 µM final concentration in vitro and in cellular assays.
IOX4 was dosed to mice by IP injection at 17.5-70 mg/kg.
- Chan MC, et al. Potent and Selective Triazole-Based Inhibitors of the Hypoxia-Inducible Factor Prolyl-Hydroxylases with Activity in the Murine Brain. (2015) PLoS One. 10(7):e0132004.
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