CAS No. 1005342-46-0

Batch: Purity:99.99
LCL161 Chemical Structure
Chemical Structure
Check the LCL161 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (2S)-N-[(1S)-1-cyclohexyl-2-[(2S)-2-[4-(4-fluorobenzoyl)-1,3-thiazol-2-yl]pyrrolidin-1-yl]-2-oxoethyl]-2-(methylamino)propanamide
CAS Number 1005342-46-0
Molecular Formula

C26H33FN4O3S

Molecular Weight (MW) 500.63
SMILES CC(C(=O)NC(C1CCCCC1)C(=O)N2CCCC2C3=NC(=CS3)C(=O)C4=CC=C(C=C4)F)NC
InChIKey UFPFGVNKHCLJJO-SSKFGXFMSA-N

Ordering Information

Biological Activity

LCL161 is a small-molecule second mitochondrial activator of caspase (SMAC) mimetic that potently binds to and inhibits inhibitor of apoptosis proteins, including XIAP and c-IAP. By targeting these anti-apoptotic proteins, LCL161 induces cIAP degradation, leading to caspase activation and modulation of NF-kB signaling pathways, which ultimately promotes apoptosis and inhibits tumor cell survival.

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 (199.74 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 100 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).

Aliquotting Service

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Note: Technical data last updated: Sep 1, 2026.