CAS No. 156053-89-3

Batch: Purity:99.64
Alvimopan Chemical Structure
Chemical Structure
Check the Alvimopan product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 156053-89-3
Molecular Formula

C25H32N2O4

Molecular Weight (MW) 424.53
SMILES CC1CN(CCC1(C)C2=CC(=CC=C2)O)CC(CC3=CC=CC=C3)C(=O)NCC(=O)O

Ordering Information

Biological Activity

Alvimopan is a potent opioid receptor antagonist targeting the μ-opioid receptor (Ki 0.77 nM), δ-opioid receptor (Ki 4.4 nM), and κ-opioid receptor (Ki 40 nM). By selectively blocking peripheral opioid receptors, it prevents opioid-induced inhibition of gastrointestinal motility without compromising central analgesia. This antagonism restores normal peristalsis and accelerates gastrointestinal recovery in preclinical models of bowel dysfunction. [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 85 mg/mL (200.22 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.