CAS No. 288-13-1

Batch: Purity:99.03
Pyrazole Chemical Structure
Chemical Structure
Check the Pyrazole product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 288-13-1
Molecular Formula
C3H4N2
Molecular Weight (MW) 68.08
SMILES [NH]1C=CC=N1

Ordering Information

Biological Activity

Pyrazole is a heteroaromatic small molecule that acts as an inhibitor of alcohol dehydrogenase (ADH). By inhibiting ADH activity, pyrazole blocks the oxidation of ethanol to acetaldehyde, disrupting hepatic ethanol metabolism and impairing downstream metabolic pathways. In addition to ADH inhibition, pyrazole serves as a versatile core scaffold widely utilized in medicinal chemistry for the synthesis and development of diverse pharmacological agents with targeted biological activities. [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 14 mg/mL (205.64 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 14 mg/mL
Ethanol 14 mg/mL
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.