Name: Octanoic Acid
Cas: 124-07-2
Purity: 99%
MOQ: 1KG
Directory Guidance on Octanoic Acid
Chemical Structure
Basic Info
Octanoic Acid (CAS Number: 124-07-2), also known as caprylic acid, is a straight-chain saturated medium-chain fatty acid containing eight carbon atoms (C8H16O2). Naturally occurring in palm oil, coconut oil, and bovine milk, this fundamental chemical building block is widely produced through controlled fractionated distillation of vegetable oils or specialized organic synthesis.
Characterized by its clear, oily colorless appearance and faint distinctive aroma, Octanoic Acid exhibits high thermal stability and predictable chemical reactivity. Its bifunctional nature—featuring a hydrophilic carboxyl head and a lipophilic carbon chain—makes it an essential precursor for esterification, amidation, and saponification processes. It serves as a core raw material in manufacturing synthetic lubricants, personal care emollients, food-grade flavor esters, plasticizers, and active pharmaceutical intermediates.
Product Introduction
| 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℃) |
| Odor | unpleasant odor |
| PH | 3.97(1 mM solution);3.45(10 mM solution);2.95(100 mM solution); |
| PH Range | 3.5 |
| Odor Type | fatty |
| explosive limit | 1%(V) |
| Water Solubility | 0.68 g/L (20 ºC) |
To comply with stringent international regulatory standards across diverse industrial downstream markets, our Octanoic Acid manufacturing partners maintain comprehensive quality and environmental safety certifications:
ISO 9001:2015: Certified Quality Management System covering manufacturing, purification, and drum-filling operations.
ISO 14001:2015: Environmental Management System ensuring sustainable production and emissions compliance.
REACH Registered: Fully compliant with European Union regulations for bulk chemical importation and downstream distribution.
Kosher & Halal Certified: Suitable for plant-derived ingredient lines requiring strict religious dietary clearance.
GMP & Food Safety Standards: Produced under strict hygienic controls aligning with FCC (Food Chemicals Codex) specifications for food additive and aroma applications.
Product Packaging
Each production batch undergoes multi-stage quality control checks in our analytical testing center. Purity profiles, acid values, and trace contaminants are strictly monitored via modern chromatographic and spectroscopic instrumentation prior to packaging.
Analytical Inspection Matrix (Typical Technical Specifications)
| Test Parameter | Specification Standard | Test Method / Equipment |
| Assay (Purity via GC) | ≥ 99.0% (C8 content) | Gas Chromatography (GC-FID) |
| Acid Value | 383 – 390 mg KOH/g | Potentiometric Titration |
| Saponification Value | 385 – 392 mg KOH/g | Standard Volumetric Method |
| Color (APHA) | ≤ 30 | Platinum-Cobalt Scale |
| Moisture Content (Karl Fischer) | ≤ 0.1% w/w | Coulometric Karl Fischer |
| Heavy Metals (as Pb) | ≤ 10 ppm | ICP-OES |
| Arsenic (As) | ≤ 1 ppm | Atomic Fluorescence Spectrometry |
| Peroxide Value | ≤ 2.0 meq/kg | Iodometric Titration |
Note: Batch-specific Certificate of Analysis (COA) and updated Safety Data Sheets (SDS) are issued with every shipment.
A. Synthetic Lubricants & Polyol Esters
Octanoic Acid is reacted with polyols (such as neopentyl glycol or trimethylolpropane) to manufacture high-performance synthetic ester base oils. These lubricants display outstanding thermal stability, low temperature fluidity, and oxidation resistance required for aviation, refrigeration, and automotive applications.
B. Flavors, Fragrances & Food Additives
Through esterification with various alcohols, Octanoic Acid forms volatile ester compounds (e.g., ethyl octanoate, amyl octanoate) that impart pleasant fruity, wine-like, and dairy flavor notes. These derivatives are heavily utilized in beverage, confectionery, and fragrance formulation.
C. Personal Care & Cosmetic Formulations
In cosmetics, C8 fatty acid derivatives (including Caprylic/Capric Triglycerides) act as non-greasy emollients, conditioning agents, and solvents. They enhance texture, spreadability, and skin barrier moisture retention in skin creams, lotions, and sunscreens.
D. Industrial Surface Active Agents & Intermediates
Serves as an intermediate in producing amine derivatives, metal soaps, biocidal sanitizing formulations, and specialized emulsifiers used in agriculture, metalworking fluids, and textile processing.
Related References
If you are looking for high-quality Octanoic acid, now is the best time! We not only provide you with very competitive prices, but also strictly guarantee the purity and stability of the products to the industry-leading level. At the same time, our comprehensive after-sales service will accompany you every step from procurement to use to escort your business.
Choose us, you will experience:
Excellent quality: products meet international standards, stability and purity are verified multiple times.
Professional service: quick response to needs, provide detailed technical support.
Long-term trust: we are committed to building lasting partnerships to help your business grow.
Please contact us now for more product details and exclusive quotes. Let us become your only choice for chemical raw material procurement and open a new chapter of cooperation together!
Manufacturer of Octanoic Acid
Zhishang Chem is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Octanoic Acid manufacturer, Zhi shang Chem has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Pre-Sales Service
* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.
* The sample supports testing and inspection.
* Each batch of products will be tested to ensure that its quality meets user needs.
*Packaging can also be made according to customer requirements.
*Any inquiries will be answered by our relevant personnel within 24 hours.
*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.
After-Sales Service
*We will monitor the logistics information in real time and will share the information with you.
* You can consult us at any time if you have any questions about the product, and we will answer you in time.
*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.
Q1: What is the primary origin of your Octanoic Acid?
A1: We offer both plant-derived (natural vegetable oil fractionated, e.g., coconut/palm kernel source) and synthetic grades depending on customer application requirements. Plant-derived grades are preferred for cosmetic and food flavor formulations.
Q2: What is the freezing point of Octanoic Acid, and how should it be stored?
A2: Octanoic Acid has a melting point of approximately 16°C to 16.5°C (61°F). In cooler climates, the liquid may solidify or become cloudy in drums. It should be stored in a dry, ventilated warehouse above 18°C or gently warm-water bath melted before handling. Standard shelf life is 24 months in sealed original containers.
Q3: How does C8 Octanoic Acid differ from C10 Decanoic Acid in synthetic applications?
A3: While both are medium-chain fatty acids, Octanoic Acid ($C_8$) has a lower molecular weight, lower viscosity, and lower melting point compared to Decanoic Acid ($C_{10}$). These structural characteristics yield different viscosity indices and volatility profiles in ester synthesis.
Q4: What packaging options are available for export shipments?
A4: Standard packaging includes 180 kg HDPE drums, 900 kg IBC totes, and bulk ISO tanks for large volume deliveries. Custom palletizing and shrink-wrapping are provided for safe sea freight transit.
Q5: Can I request analytical samples for laboratory trial batches?
A5: Yes. We provide sample quantities (typically 100g – 500g) along with complete technical documentation, SDS, and batch COA to assist your laboratory validation and R&D formulation trials.
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
