Caprylic acid

CAS Number
124-07-2
EC Number
204-677-5
Chemical Formula
C8H16O2
Molecular Weight
144.21 g/mol
FEMA Number
FEMA 2799

Description

Caprylic acid (CAS 124-07-2), also known as octylic acid, is a saturated C8 fatty acid derived primarily from coconut and palm kernel oil. It functions as a pH regulator, emulsifier, and antimicrobial agent across food, pharmaceutical, and personal care manufacturing. In food production, caprylic acid is used as a flavoring agent and acidulant, with FEMA 2799 status supporting its use in dairy, baked goods, and beverage formulations. Pharmaceutical manufacturers use it as an excipient and stabilizer in lipid-based drug delivery systems.

This versatile fatty acid is particularly effective for oral and topical formulations. Personal care formulators incorporate it into skin creams and hair products where it supports emulsion stability and acts as a conditioning agent. In metalworking and lubricant applications, it serves as a feedstock for ester-based lubricants and corrosion inhibitors. Caprylic acid is supplied as a colorless to pale yellow liquid that meets rigorous industrial requirements.

Standard commercial grades include food-grade (FCC), pharmaceutical-grade (USP/BP), and technical-grade. Purity levels typically range from 98% to 99.5% to ensure consistent performance in sensitive chemical processes. Packaging options generally include drums and IBC containers, with bulk tanker supply available for high-volume industrial buyers. This ensures flexible logistics for manufacturers across the global chemical supply chain.

Other Names (Synonyms)

octylic acid|octoic acid|n-octylic acid|n-octoic acid|n-octanoic acid|n-caprylic acid|1-heptanecarboxylic acid|octanoic acid

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

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Physical Properties

Melting Point 16.7 °C
Boiling Point 239.7 °C
Density 0.910 g/cm³ @ Temp: 20 °C
Flash Point >230 °F
Appearance colourless oily liquid
Color Clear colorless to yellow
Odor unpleasant odor
Form Liquid
Water Solubility 0.68 g/L (20 ºC)
Vapor Pressure 1 mm Hg ( 78 °C)
Refractive Index n 20/D 1.428(lit.)
pH 4 (0.2g/l, H2O, 20℃)
Log P 3.05 at 20℃

Documentation

Safety & Handling Learn More

Danger
GHS05· Corrosive GHS06· Toxic GHS07· Irritant

Hazard Statements

H302 Harmful if swallowed
H311 Toxic in contact with skin
H314 Causes severe skin burns and eye damage
H318 Causes serious eye damage
H402 Harmful to aquatic life
H412 Harmful to aquatic life with long lasting effects

Precautionary Statements

P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P262 Do not get in eyes, on skin, or on clothing.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.

Trade & Regulatory

HS Code 29159000
UN Number 3265
ADR Class 8
Packing Group III
Storage Class 8A - Combustible corrosive hazardous materials
WGK (Germany) 1
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