CAS No. 801312-28-7

Batch: Purity:99.31
GSK256066 Chemical Structure
Chemical Structure
Check the GSK256066 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 6-[3-(dimethylcarbamoyl)phenyl]sulfonyl-4-(3-methoxyanilino)-8-methylquinoline-3-carboxamide
CAS Number 801312-28-7
Molecular Formula

C27H26N4O5S

Molecular Weight (MW) 518.58
SMILES CC1=CC(=CC2=C(C(=CN=C12)C(=O)N)NC3=CC(=CC=C3)OC)S(=O)(=O)C4=CC=CC(=C4)C(=O)N(C)C
InChIKey JFHROPTYMMSOLG-UHFFFAOYSA-N

Biological Activity

GSK256066 is a selective phosphodiesterase 4 (PDE4) inhibitor that targets PDE4B with an IC50 of 3.2 pM. By elevating intracellular cAMP levels, GSK256066 suppresses pro-inflammatory mediator release, including lipopolysaccharide-induced tumor necrosis factor production in human monocytes and whole blood. Consequently, it demonstrates potent anti-inflammatory activity and reduces pulmonary eosinophilia and neutrophilia in preclinical respiratory disease 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
4-Methylpyridine 11 mg/mL
DMSO Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)
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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Reference

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