CAS No. 1801344-14-8

Batch: Purity:99.88
Emavusertib (CA-4948) Chemical Structure
Chemical Structure
Check the Emavusertib (CA-4948) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[5-[(3R)-3-hydroxypyrrolidin-1-yl]-2-morpholin-4-yl-[1,3]oxazolo[4,5-b]pyridin-6-yl]-2-(2-methyl-4-pyridinyl)-1,3-oxazole-4-carboxamide
CAS Number 1801344-14-8
Molecular Formula

C24H25N7O5

Molecular Weight (MW) 491.50
SMILES CC1=NC=CC(=C1)C2=NC(=CO2)C(=O)NC3=C(N=C4N=C(OC4=C3)N5CCOCC5)N6CCC(O)C6
InChIKey SJHNWSAWWOAWJH-MRXNPFEDSA-N

Ordering Information

Biological Activity

Emavusertib (CA-4948) is an orally bioavailable dual inhibitor targeting interleukin-1 receptor-associated kinase 4 (IRAK4) and FMS-like tyrosine kinase 3 (FLT3). Suppressing IRAK4 disrupts Toll-like receptor and interleukin-1 receptor signaling pathways, impairing downstream myddosome assembly and NF-kB activation. This target blockade downregulates pro-inflammatory signaling and suppresses leukemic cell growth in hematologic malignancies such as acute myeloid leukemia.

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 49 mg/mL (99.69 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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Note: Technical data last updated: Sep 1, 2026.