Sorbic Acid CAS#110-44-1 Products Description
Sorbic acid, also referred to as 2,4-hexadienoic acid, 2-propenyl acrylic acid, or herbal tea acid, is a widely used food additive with the molecular formula C₆H₈O₂. It is valued for its ability to inhibit the growth of various fungi, particularly yeasts and molds, helping preserve product quality and extend shelf life.
Beyond the food industry, sorbic acid has a broad range of applications, including animal feed, cosmetics, pharmaceutical formulations, packaging materials, and rubber additives, making it a versatile ingredient across multiple industrial sectors.

Sorbic Acid CAS#110-44-1 Chemical Properties
| Melting point | 132-135 °C (lit.) |
| Boiling point | 228°C |
| density | 1.2 g/cm3 at 20 °C |
| vapor pressure | 0.01 mm Hg ( 20 °C) |
| refractive index | 1.4600 (estimate) |
| FEMA | 3921 | 2,4-HEXADIENOIC ACID, (E,E)- |
| Fp | 127 °C |
| storage temp. | 2-8°C |
| solubility | ethanol: 0.1 g/mL, clear |
| pka | 4.76(at 25℃) |
| form | Crystalline Powder |
| color | White or cream-white |
| Odor | bland |
| PH | 3.3 (1.6g/l, H2O, 20°C) |
| biological source | synthetic |
| Water Solubility | 1.6 g/L (20 ºC) |
| Merck | 14,8721 |
| JECFA Number | 1176 |
| BRN | 1741831 |
| Henry's Law Constant | 3.3×101 mol/(m3Pa) at 25℃, Abraham and Jr. (2019) |
| Stability: | Material saturated with this acid may ignite spontaneously. Incompatible with strong oxidizing agents. May be light sensitive. |
| Major Application | cleaning products cosmetics flavors and fragrances food and beverages personal care |
| Cosmetics Ingredients Functions | PRESERVATIVE FRAGRANCE |
| InChI | 1S/C6H8O2/c1-2-3-4-5-6(7)8/h2-5H,1H3,(H,7,8)/b3-2+,5-4+ |
| InChIKey | WSWCOQWTEOXDQX-MQQKCMAXSA-N |
| SMILES | C\C=C\C=C\C(O)=O |
| LogP | 1.32 at 20℃ |
| CAS DataBase Reference | 110-44-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 2,4-Hexadienoic acid, (E,E)-(110-44-1) |
| EPA Substance Registry System | Sorbic acid (110-44-1) |
Sorbic Acid CAS#110-44-1Safety Information
| Hazard Codes | Xi |
| Risk Statements | 36/37/38-36/38 |
| Safety Statements | 26-36-24/25 |
| WGK Germany | 1 |
| RTECS | WG2100000 |
| F | 8 |
| Autoignition Temperature | >130 °C |
| TSCA | TSCA listed |
| HS Code | 29161930 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 |
| Skin Irrit. 2 | |
| Hazardous Substances Data | 110-44-1(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 7.36 g/kg (Smyth, Carpenter) |
Sorbic Acid CAS#110-44-1 Product Application
In cosmetic formulations, sorbic acid can be incorporated into emulsions, ointments, and various creams as a preservative ingredient. It can be derived naturally from the berries of mountain ash and rowan trees or manufactured through synthetic processes.
Despite its widespread use in preservation, sorbic acid may cause skin irritation or sensitivity in certain individuals, depending on the formulation and individual tolerance.
