SMILES:

C1CCN(C1)CC2=NC3=CC=CC=C3N2CC4=CC=C(C=C4)Cl
Clemizole Chemical Structure
Chemical Structure
Check the Clemizole product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 1-[(4-chlorophenyl)methyl]-2-(pyrrolidin-1-ylmethyl)benzimidazole
CAS Number 442-52-4
Molecular Formula

C19H20ClN3
Molecular Weight (MW) 325.84
SMILES C1CCN(C1)CC2=NC3=CC=CC=C3N2CC4=CC=C(C=C4)Cl
InChIKey CJXAEXPPLWQRFR-UHFFFAOYSA-N

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 65 mg/mL (199.48 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
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.