CAS No. 1628323-80-7

Batch: Purity:98.75
Rusfertide(PTG-300) Chemical Structure
Chemical Structure
Check the Rusfertide(PTG-300) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 1628323-80-7
Molecular Formula

C114H181N27O28S2

Molecular Weight (MW) 2441.96

Ordering Information

Biological Activity

Rusfertide (PTG-300) is a peptide hepcidin mimetic that targets ferroportin to regulate systemic iron homeostasis. By binding ferroportin, it induces its internalization and lysosomal degradation, thereby blocking cellular iron export into the blood plasma. This selective downregulation of ferroportin activity restricts transferrin saturation, decreases labile iron accumulation, and promotes balanced erythropoiesis to attenuate iron overload phenotypes. [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 100 mg/mL (40.95 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 100 mg/mL
Ethanol 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).
Note: Technical data last updated: Sep 1, 2026.