CAS No. 913358-93-7

Batch: Purity:99.99
Almorexant HCl Chemical Structure
Chemical Structure
Check the Almorexant HCl product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (2R)-2-[(1S)-6,7-dimethoxy-1-[2-[4-(trifluoromethyl)phenyl]ethyl]-3,4-dihydro-1H-isoquinolin-2-yl]-N-methyl-2-phenylacetamide;hydrochloride
CAS Number 913358-93-7
Molecular Formula

C29H32ClF3N2O3

Molecular Weight (MW) 549.02
SMILES CNC(=O)C(C1=CC=CC=C1)N2CCC3=CC(=C(C=C3C2CCC4=CC=C(C=C4)C(F)(F)F)OC)OC.Cl
InChIKey BYGBTDRDPBJUBB-LHIMUUITSA-N

Ordering Information

Biological Activity

Almorexant HCl is an orally active, dual orexin receptor antagonist that potently inhibits the OX1 receptor (IC50 13 nM) and OX2 receptor (IC50 8 nM). By blocking orexin peptide signaling, it suppresses central wakefulness pathways, leading to dose-dependent reductions in sleep latency and wake time after sleep onset. Preclinical studies in rats and dogs demonstrate sleep-promoting effects that resemble physiological sleep and are rapidly reversible upon sensorimotor stimulation. [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 72 mg/mL (131.14 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 51 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.