CAS No. 96829-58-2

Batch: Purity:99.98
Orlistat Chemical Structure
Chemical Structure
Check the Orlistat product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name [(2S)-1-[(2S,3S)-3-hexyl-4-oxooxetan-2-yl]tridecan-2-yl] (2S)-2-formamido-4-methylpentanoate
CAS Number 96829-58-2
Molecular Formula

C29H53NO5

Molecular Weight (MW) 495.73
SMILES CCCCCCCCCCCC(CC1C(C(=O)O1)CCCCCC)OC(=O)C(CC(C)C)NC=O
InChIKey AHLBNYSZXLDEJQ-FWEHEUNISA-N

Ordering Information

Biological Activity

Orlistat is a potent lipase inhibitor that directly targets pancreatic lipase and fatty acid synthase (FAS). By inhibiting lipolytic enzyme activity and shutting down de novo fatty acid synthesis pathways, orlistat disrupts cellular lipid metabolism. Consequently, orlistat treatment markedly suppresses cell proliferation, induces apoptosis, and arrests cell cycle progression in 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 99 mg/mL (199.7 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 99 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.