Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Profile
- Full IUPAC Name: Octanoic acid
- Aliases: Caprylic acid, n-Octanoic acid, Octylic acid
- CAS Number: 124-07-2
- EINECS: 204-677-5
- Molecular Formula: C8H16O2
- Molecular Weight: 144.21
- Chemical Classification: Medium-chain saturated fatty acid, flavor raw material, cosmetic emulsifier intermediate, feed additive, pharmaceutical excipient
- Core Advantages
Straight-chain saturated C8 medium-chain fatty acid with mild fatty odor, excellent surface activity and antibacterial properties. Easy to form esters, salts and glycerides; widely used in food flavor, cosmetic emulsifier synthesis, animal feed, pharmaceutical solvent and disinfectant raw materials. Low freezing point, good oil solubility, stable under normal storage conditions.
2. Physical & Chemical Properties
2.1 Physical Index
- Appearance: Colorless transparent oily liquid, solidifies into white crystal below freezing point
- Odor: Weak characteristic fatty, slightly coconut-like aroma
- Solubility: Slightly soluble in water; miscible with ethanol, methanol, acetone, vegetable oils, mineral oil
- Boiling Point: 237 °C
- Melting Point: 16–17 °C
- Density (20℃): 0.908–0.912 g/cm3
- Refractive Index nD20: 1.426–1.429
- pH (saturated aqueous solution): 3.8–4.5 (weak acidity)
- Hygroscopy: Non-hygroscopic
2.2 Chemical Properties
- Molecular structure: Linear alkyl chain with one terminal carboxyl group, saturated carbon chain without double bonds
- Esterification reaction: Reacts with alcohols, glycerol to produce caprylic acid esters, widely used emulsifiers and fragrances
- Salt formation: Neutralizes with alkali to generate octanoate salts (zinc octanoate, sodium octanoate) with antibacterial activity
- Thermal Stability: Stable below 200℃; high temperature will cause decarboxylation decomposition
- Acid & Alkali Stability: Stable in weak acid/neutral system; rapid neutralization reaction with strong alkali
- Photostability: Slightly yellow under long-term light exposure
- Compatibility: Compatible with most oils, organic solvents; incompatible with strong oxidants, strong alkaline substances
3. Main Application Fields
3.1 Flavor & Fragrance Industry (Core Usage)
- Raw material for coconut, cream, fruit food flavor; modifier for dairy and baked food aroma
- Synthetic precursor of caprylate perfume esters with fruity, creamy notes
3.2 Cosmetic & Personal Care Raw Material
- Medium-chain fatty acid raw material for nonionic emulsifiers, mild skin care cream base
- Antibacterial auxiliary for anti-acne and body care formulations, inhibits skin harmful bacteria
3.3 Feed & Nutrition Additive
Natural feed antibacterial agent for livestock, poultry and aquaculture; improves intestinal health and replaces partial antibiotics
3.4 Pharmaceutical & Industrial Applications
- Solubilizer and solvent for oral and external pharmaceutical preparations; raw material for medium-chain triglyceride (MCT) oil
- Metal surface lubricant, paint drier raw material (metal octanoate catalyst)
4. Quality Specification Table
| Test Item | Standard Index |
| CAS No. | 124-07-2 |
| Molecular Formula | C8H16O2 |
| Molecular Weight | 144.21 |
| Appearance | Colorless clear oily liquid |
| GC Purity | Food Grade ≥99.0%; Industrial Grade ≥98.0% |
| Water Content (KF) | ≤0.10% |
| Acid Value | 385–395 mgKOH/g |
| Heavy Metals (Pb) | ≤10 ppm (Food Grade ≤2 ppm) |
| Residue on Evaporation | ≤0.05% |
| Bulk Package | 200L plastic-lined iron drum, IBC tank |
| Sample Package | 1L / 5L sealed plastic bottle |
| Storage Requirements | Hermetic cool warehouse ≤25℃; avoid strong alkali, oxidants and direct sunlight |
| Transportation Rule | Weak acidic fatty acid liquid; airtight sealed packaging required during transit |
| Shelf Life | 24 months under intact sealed packaging |
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