CAS No. 152121-47-6

Batch: Purity:99.98
SB203580 (Adezmapimod) Chemical Structure
Chemical Structure
Check the SB203580 (Adezmapimod) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 4-[4-(4-fluorophenyl)-2-(4-methylsulfinylphenyl)-1H-imidazol-5-yl]pyridine
CAS Number 152121-47-6
Molecular Formula

C21H16FN3OS

Molecular Weight (MW) 377.43
SMILES CS(=O)C1=CC=C(C=C1)C2=NC(=C(N2)C3=CC=NC=C3)C4=CC=C(C=C4)F
InChIKey CDMGBJANTYXAIV-UHFFFAOYSA-N

Ordering Information

Biological Activity

SB203580 (Adezmapimod) is a potent p38 MAPK inhibitor that suppresses lipopolysaccharide-induced pro-inflammatory cytokine synthesis in human monocytes and inhibits stress-activated protein kinase signaling. Blockade of the p38 MAPK pathway disrupts downstream phosphorylation of targeted transcription factors and inflammatory mediators, ultimately suppressing cellular cytokine release while promoting autophagy and mitophagy under stress conditions. [1][2]

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 38 mg/mL (100.68 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.