component: mainly composed of twelve to sixteen carbon saturated fatty acids and a small amount of eighteen carbon unsaturated acids
Appearance: White creamy liquid
Source: by-products of dimeric acid production
Usage field: Production of alkyd resin coatings, isomeric acids, cosmetics, and pharmaceutical intermediates.
| Indicator Name | Index |
| Acid value（mgKOH/g） | ≥180 |
| Colour（Iron cobalt colorimetry） | <3 |