CAS No. 64924-67-0

Batch: Purity:99.68
Check the Halofuginone hydrobromide product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 64924-67-0
Molecular Formula

C16H18Br2ClN3O3

Molecular Weight (MW) 495.59

Ordering Information

Biological Activity

Halofuginone hydrobromide, a febrifugine derivative, is a competitive prolyl-tRNA synthetase inhibitor with a Ki of 18.3 nM [1]. Specific target inhibition suppresses aminoacyl-tRNA charging and attenuates downstream TGF-β signaling pathways [1, 2]. Consequently, halofuginone specifically inhibits type-I collagen synthesis, reduces subchondral bone deterioration, and limits aberrant angiogenesis, effectively mitigating disease progression in osteoarthritis and tissue fibrosis models [1, 2].[1][2]

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 16 mg/mL (32.28 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 2 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.