Sodium propionate

For research use only. Not for therapeutic Use.

  • CAT Number: M068927
  • CAS Number: 137-40-6
  • Molecular Formula: C3H5O2Na
  • Molecular Weight: 96.06
  • Purity: ≥95%
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Sodium propionate(CAT: M068927) is the sodium salt of propionic acid, with the chemical formula C₃H₅NaO₂. It appears as a white, crystalline powder and is widely used as a preservative in food, pharmaceuticals, and cosmetics due to its effective antifungal and antibacterial properties. In laboratory and industrial settings, sodium propionate serves as a buffering agent and carbon source in microbial culture media. It is also utilized in animal feed formulations to inhibit mold growth. Known for its low toxicity and high solubility in water, sodium propionate is ideal for applications requiring pH stability and microbial control.


CAS Number 137-40-6
Molecular Formula C3H5O2Na
Purity ≥95%
Storage -20°C
IUPAC Name sodium;propanoate
InChI InChI=1S/C3H6O2.Na/c1-2-3(4)5;/h2H2,1H3,(H,4,5);/q;+1/p-1
InChIKey JXKPEJDQGNYQSM-UHFFFAOYSA-M
SMILES CCC(=O)[O-].[Na+]
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