CAS No. 193746-75-7

Batch: Purity:99.56
SB 242235 Chemical Structure
Chemical Structure
Check the SB 242235 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 4-[5-(4-fluorophenyl)-3-piperidin-4-ylimidazol-4-yl]-2-methoxypyrimidine
CAS Number 193746-75-7
Molecular Formula

C19H20FN5O

Molecular Weight (MW) 353.39
SMILES COC1=NC=CC(=N1)C2=C(N=CN2C3CCNCC3)C4=CC=C(C=C4)F
InChIKey PDTYLGXVBIWRIM-UHFFFAOYSA-N

Ordering Information

Biological Activity

SB 242235 is a potent and selective p38 MAP kinase inhibitor that suppresses IL-1β-induced p38 MAP kinase activity in primary human chondrocytes. By inhibiting p38 MAPK pathway signaling, SB 242235 downregulates pro-inflammatory gene expression and suppresses cytokine release. This targeted inhibition attenuates downstream inflammatory responses and reduces cellular cartilage degradation mechanisms in preclinical inflammatory models. [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 71 mg/mL (200.91 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 71 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).
Note: Technical data last updated: Sep 1, 2026.