CAS No. 911417-87-3

Batch: Purity:99.95
KD025 (Belumosudil) Chemical Structure
Chemical Structure
Check the KD025 (Belumosudil) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 2-[3-[4-(1H-indazol-5-ylamino)quinazolin-2-yl]phenoxy]-N-propan-2-ylacetamide
CAS Number 911417-87-3
Molecular Formula

C26H24N6O2

Molecular Weight (MW) 452.51
SMILES CC(C)NC(=O)COC1=CC=CC(=C1)C2=NC3=CC=CC=C3C(=N2)NC4=CC5=C(C=C4)NN=C5
InChIKey GKHIVNAUVKXIIY-UHFFFAOYSA-N

Ordering Information

Biological Activity

Belumosudil (KD025) is an orally bioavailable, selective inhibitor of Rho-associated coiled-coil kinase 2 (ROCK2) with an IC50 of 60 nM and a Ki of. Inhibition of ROCK2 downstream signaling downregulates STAT3 phosphorylation, suppressing pro-inflammatory Th17 cell differentiation while promoting regulatory T cell development and function to reduce immune-mediated tissue injury. [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 90 mg/mL (198.89 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
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).

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