CAS No. 808118-40-3

Batch: Purity:99.96
Roxadustat (FG-4592) Chemical Structure
Chemical Structure
Check the Roxadustat (FG-4592) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-[(4-hydroxy-1-methyl-7-phenoxyisoquinoline-3-carbonyl)amino]acetic acid
CAS Number 808118-40-3
Molecular Formula

C19H16N2O5

Molecular Weight (MW) 352.34
SMILES CC1=C2C=C(C=CC2=C(C(=N1)C(=O)NCC(=O)O)O)OC3=CC=CC=C3
InChIKey YOZBGTLTNGAVFU-UHFFFAOYSA-N

Biological Activity

Roxadustat (FG-4592) is an orally active hypoxia-inducible factor (HIF) prolyl hydroxylase inhibitor. By inhibiting HIF prolyl hydroxylase enzymes, Roxadustat stabilizes HIF-1α and HIF-2α transcription factor subunits, preventing their degradation and promoting functional HIF complex activation. This response directly upregulates the transcription of genes essential for erythropoiesis and iron metabolism, including erythropoietin (EPO), thereby promoting red blood cell production and modulating cellular oxygen-sensing pathways. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 70 mg/mL (198.67 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 2 mg/mL
Water Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
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Reference

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Note: Technical data last updated: Sep 1, 2026.