CAS No. 941685-27-4

Batch: Purity:98
INCB032304 Chemical Structure
Chemical Structure
Check the INCB032304 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 941685-27-4
Molecular Formula

C15H21N5OSi

Molecular Weight (MW) 315.45
SMILES C[Si](C)(C)CCOCN1C=CC2=C(N=CN=C21)C3=CNN=C3

Ordering Information

Biological Activity

INCB032304 is a pharmaceutical intermediate and precursor used in the synthesis of Janus kinase (JAK) inhibitors, including ruxolitinib. These agents target Janus kinase 1 (JAK1) and Janus kinase 2 (JAK2), leading to the suppression of downstream JAK/STAT signaling pathways. Blockade of this pathway regulates cytokine signaling, cellular proliferation, and survival in preclinical models of myeloproliferative disorders. [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 63 mg/mL (199.71 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
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.