Octanoic acid
CAS Number: 124-07-2
Chemical Formula: C8H16O2
Synonyms:
1-Heptanecarboxylic acid
caprylic acid free acid
N-CAPRYLIC ACID EXTRA PURE
Appearance: Colorless Liquid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Product Details
Octanoic acid CAS#124-07-2
Octanoic acid is a colorless to pale yellow liquid with a faint characteristic odor. It is combustible though ignition can be difficult. It shows corrosive effects toward metals and biological tissues.
Parameters
| Property | Value |
| Melting point | 16 °C |
| Boiling point | 237 °C(lit.) |
| density | 0.91 g/mL at 25 °C(lit.) |
| vapor density | 5 (vs air) |
| vapor pressure | 1 mm Hg (78 °C) |
| refractive index | n20/D 1.428(lit.) |
| FEMA | 2799 | OCTANOIC ACID |
| Fp | >230 °F |
| storage temp. | 20-25°C |
| solubility | 0.68g/l |
| pka | 4.89(at 25℃) |
| form | Liquid |
| color | Clear colorless to yellow |
| Specific Gravity | 0.910 (20/4℃) |
| PH | 3.97(1 mM solution);3.45(10 mM solution);2.95(100 mM solution); |
| PH Range | 3.5 |
| Odor | unpleasant odor |
| Odor Type | fatty |
| biological source | synthetic |
| explosive limit | 1%(V) |
| Water Solubility | 0.68 g/L (20 ºC) |
| Merck | 14,1765 |
| JECFA Number | 99 |
| BRN | 1747180 |
| Dielectric constant | 3.2（18℃） |
| Stability: | Stable. Incompatible with bases, reducing agents, oxidizing agents. Flammable. |
| Major Application | cleaning products; cosmetics; flavors and fragrances; food and beverages; personal care |
| Cosmetics Ingredients Functions | SURFACTANT – EMULSIFYING; FRAGRANCE; CLEANSING; PERFUMING; SURFACTANT – CLEANSING |
| Cosmetic Ingredient Review (CIR) | Octanoic acid (124-07-2) |
| InChI | 1S/C8H16O2/c1-2-3-4-5-6-7-8(9)10/h2-7H2,1H3,(H,9,10) |
| InChIKey | WWZKQHOCKIZLMA-UHFFFAOYSA-N |
| SMILES | CCCCCCCC(O)=O |
| LogP | 3.05 at 20℃ |
| CAS DataBase Reference | 124-07-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Octanoic acid(124-07-2) |
| EPA Substance Registry System | Octanoic acid (124-07-2) |
Safety Information
| Item | Details |
| Hazard Codes | C,Xi |
| Risk Statements | 34 |
| Safety Statements | 26-36/39-45-36/37/39-25-27 |
| RIDADR | UN 3265 8/PG 3 |
| WGK Germany | 1 |
| RTECS | RH0175000 |
| Autoignition Temperature | >300 °C |
| Hazard Note | Irritant |
| TSCA | TSCA listed |
| HS Code | 2915 90 70 |
| HazardClass | 8 |
| PackingGroup | III |
| Storage Class | 8A – Combustible corrosive hazardous materials |
| Hazard Classifications | Aquatic Chronic 3; Eye Dam. 1; Skin Corr. 1C |
| Hazardous Substances Data | 124-07-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 10,080 mg/kg (Jenner) |
Product Application
Octanoic acid serves across many industrial sectors. As an antimicrobial agent, it acts as a food‑contact surface sanitizer for dairy gear, food processing lines, breweries, wineries, and beverage plants in professional food operations.
It also functions as an algaecide, bactericide, and fungicide for ornamental plants in nurseries, greenhouses, garden stores, and interior landscapes. Formulations include soluble concentrates and ready‑to‑use liquids.
Caprylic acid supports therapy against certain bacterial infections. Its short carbon chain easily crosses fatty cell membranes, making it active against lipid‑coated strains such as Staphylococcus aureus and multiple Streptococcus species.
Industrially, octanoic acid is used to synthesize esters for perfumes and to produce various dyestuffs.
Research indicates caprylic acid may help boost calorie expenditure when used as a dietary supplement, supporting healthy weight management.
Fact Factory and Equipment Show
Fast delivery time
Inventory 2–3 working days; New production 7–10 working days.
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