CAS No. 2869954-34-5

Batch: Purity:99.95
HRO761 Chemical Structure
Chemical Structure
Check the HRO761 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[2-chloro-4-(trifluoromethyl)phenyl]-2-[2-(3,6-dihydro-2H-pyran-4-yl)-5-ethyl-6-[4-(5-hydroxy-6-methylpyrimidine-4-carbonyl)piperazin-1-yl]-7-oxo-[1,2,4]triazolo[1,5-a]pyrimidin-4-yl]acetamide
CAS Number 2869954-34-5
Molecular Formula

C31H31ClF3N9O5

Molecular Weight (MW) 702.08
InChIKey XKYVECRUZPCRQR-UHFFFAOYSA-N

Ordering Information

Biological Activity

HRO761 is a potent, selective, allosteric inhibitor of Werner syndrome RecQ helicase (WRN). By binding at the interface of the D1 and D2 helicase domains, HRO761 locks WRN in an inactive conformation and promotes target degradation. This inhibition impairs genomic stability maintenance, triggering DNA damage accumulation and selective tumor cell growth inhibition in microsatellite instability (MSI) cancer cells. [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 100 mg/mL (142.43 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).
Note: Technical data last updated: Sep 1, 2026.