CAS No. 127-08-2

Batch: Purity:99.5
Potassium acetate Chemical Structure
Chemical Structure
Check the Potassium acetate product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name potassium acetate
CAS Number 127-08-2
Molecular Formula

C2H3O2.K

Molecular Weight (MW) 98.14
SMILES CC(=O)[O-].[K+]
InChIKey SCVFZCLFOSHCOH-UHFFFAOYSA-M

Biological Activity

Potassium acetate is a synthetic potassium salt of acetic acid that functions as an antimicrobial agent with antibacterial and antifungal properties. As a weak organic acid salt, it exerts its inhibitory effects primarily through intracellular acidification and membrane disruption, leading to the impairment of essential cellular metabolism and inhibition of microbial growth. [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 6 mg/mL (61.13 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).

Reference

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