CAS No. 1300031-52-0

Batch: Purity:99.61
GSK1324726A (I-BET726) Chemical Structure
Chemical Structure
Check the GSK1324726A (I-BET726) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 4-[(2S,4R)-1-acetyl-4-(4-chloroanilino)-2-methyl-3,4-dihydro-2H-quinolin-6-yl]benzoic acid
CAS Number 1300031-52-0
Molecular Formula

C25H23ClN2O3

Molecular Weight (MW) 434.91
SMILES CC1CC(C2=C(N1C(=O)C)C=CC(=C2)C3=CC=C(C=C3)C(=O)O)NC4=CC=C(C=C4)Cl
InChIKey FAWSUKOIROHXAP-NPMXOYFQSA-N

Ordering Information

Biological Activity

GSK1324726A (I-BET726) is a potent and selective inhibitor of BET family proteins, targeting BRD2, BRD3, and BRD4. By blocking the interaction of BET bromodomains with acetylated histones, it downregulates critical oncogenic driver expression, such as MYC, and suppresses pro-inflammatory cytokine production, leading to inhibition of tumor cell proliferation and anti-inflammatory phenotypes in preclinical 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 86 mg/mL (197.74 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 86 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.