CAS No. 110-44-1

Batch: Purity:99.99
Sorbic acid Chemical Structure
Chemical Structure
Check the Sorbic acid product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (2E,4E)-hexa-2,4-dienoic acid
CAS Number 110-44-1
Molecular Formula

C6H8O2

Molecular Weight (MW) 112.13
SMILES CC=CC=CC(=O)O
InChIKey WSWCOQWTEOXDQX-MQQKCMAXSA-N

Biological Activity

Sorbic acid is a naturally occurring unsaturated fatty acid that functions as a broad-spectrum antimicrobial agent. It inhibits the growth of various bacteria and fungi by disrupting cell membrane integrity, dissipating the proton motive force, and interfering with essential cellular metabolic processes. This membrane disruption and intracellular acidification impair bacterial spore germination, outgrowth, and cell division, ultimately leading to microbial growth inhibition.

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 22 mg/mL (196.2 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 22 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).

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