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Surfactants

Linoleic acid

CAS: 60-33-3

Overview

Linoleic acid ( CAS 60-33-3 ), also known as telfairic acid, is an 18-carbon polyunsaturated omega-6 fatty acid derived primarily from vegetable oils. Approved under FEMA 3380 , it functions as an emulsifier and flavoring agent.

In food production, it acts as an acidulant and flavoring component, contributing to the characteristic taste profiles of fats and oils. Personal care formulators incorporate it into skin creams and serums to support emulsion stability.

Pharmaceutical manufacturers use it as a functional excipient in lipid-based drug delivery systems. Its emulsification properties improve the bioavailability of poorly soluble active ingredients in various medical formulations.

In industrial oleochemical processing, it serves as a feedstock for the production of conjugated linoleic acid and other derivative compounds. It is also utilized as a pH regulator across several manufacturing sectors.

The product is supplied as a pale yellow to amber liquid, typically in bulk or drummed formats suited to industrial processing volumes. It is available in food-grade and technical-grade specifications for global distribution.

Purity levels commonly range from 60% to above 99% depending on the intended application. High-purity grades meeting USP or Ph.Eur. standards are available for pharmaceutical and nutraceutical use.

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Physical Properties

Melting Point-12 °C
Boiling Point224 °C @ Press: 17 Torr
Density0.9022 g/cm³ @ Temp: 20 °C
Flash Point>230 °F
AppearanceLiquid at room temperature, colorless
ColorClear yellow
Odorfaint fatty
Formliquid
Water SolubilityINSOLUBLE
Refractive Indexn 20/D 1.466(lit.)
Log P7.050

Safety & Handling

Warning GHS02 Hazard Statements H226 Flammable liquid and vapor Precautionary Statements P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P233 Keep container tightly closed. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment. P242 Use non-sparking tools. P243 Take action to prevent static discharges. P280 Wear protective gloves/protective clothing/eye protection/face protection. P501 Dispose of contents/container in accordance with local regulations. P370+P378 Use … for extinction. P403+P235 Store in a well-ventilated place. Keep cool. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.

Trade & Regulatory

HS Code29161500
UN Number1170
Packing GroupII
Storage Class10 - Combustible liquids
WGK (Germany)1

Other Names

telfairic acid | linolic acid | ciscis-linoleic acid | ciscis-912-octadecadienoic acid | cis-delta(912)-octadecadienoic acid | cis-D912-octadecadienoic acid | cis-9cis-12-octadecadienoic acid | C18:2(n-6)

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Chemical Properties

CAS Number
60-33-3
EC Number
200-470-9
Mol. Weight
280.4
HS Code
29161500
Category
Surfactants

Industries

Documentation