CAS No. 85532-75-8

Batch: Purity:98.70
PK 11195 Chemical Structure
Chemical Structure
Check the PK 11195 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 85532-75-8
Molecular Formula

C21H21ClN2O

Molecular Weight (MW) 352.86

Ordering Information

Biological Activity

PK 11195 is a potent antagonist of the translocator protein (TSPO), displaying high affinity in the cerebellum and spinal cord. It also functions as an antagonist of human constitutive androstane receptor (hCAR) and pregnane X receptor (PXR). Target binding modulates mitochondrial function, downstream apoptotic cascades, and cellular inflammatory responses. [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 71 mg/mL (201.21 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 17 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.