CAS No. 7681-76-7

Batch: Purity:99.92
Ronidazole Chemical Structure
Chemical Structure
Check the Ronidazole product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 7681-76-7
Molecular Formula

C6H8N4O4

Molecular Weight (MW) 200.15
SMILES CN1C(=CN=C1COC(=O)N)[N+](=O)[O-]

Ordering Information

Biological Activity

Ronidazole is a nitroimidazole derivative that acts as an antiprotozoal agent. It undergoes intracellular reduction by anaerobic protists to generate reactive nitro radical intermediates. These reactive species cause oxidative stress and induce double-stranded DNA cleavage, thereby inhibiting nucleic acid synthesis and leading to protozoal cell death. Through this pathway, ronidazole exerts potent antiparasitic effects against various protozoan organisms, including Tritrichomonas foetus.

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 40 mg/mL (199.85 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
Ethanol 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.