Behenic acid
CAS 112-85-6
EC 204-010-8
Formula C22H44O2
MW 340.58 g/mol
Surfactants Personal Care & CosmeticsPlastics & PolymersLubricants & MetalworkingFood & Nutrition LubricationEmulsification & DispersionAntioxidant & Stabilizer
Description
Behenic acid (CAS 112-85-6) is a long-chain saturated fatty acid derived from plant-based sources, commercially available under trade names including B 95, EXL 5, NAA 222S, and B95(acid), and also referenced as C22:0. It carries no assigned E-code and is identified under EC number 204-010-8.
In personal care formulations, behenic acid functions as an emulsion stabilizer and thickener by integrating into lipid bilayers and increasing membrane rigidity, which improves cream and conditioner texture. In plastics processing, it acts as an internal lubricant and heat stabilizer, reducing polymer-to-metal friction during extrusion and delaying thermal degradation.
Behenic acid is supplied as a crystalline powder in technical and cosmetic grades, with select grades meeting FCC and Ph.Eur. specifications for food and pharmaceutical applications. The substance is registered under REACH and classified under HS code 29159000. Packaging formats typically include 25 kg bags and bulk options depending on grade.
In personal care formulations, behenic acid functions as an emulsion stabilizer and thickener by integrating into lipid bilayers and increasing membrane rigidity, which improves cream and conditioner texture. In plastics processing, it acts as an internal lubricant and heat stabilizer, reducing polymer-to-metal friction during extrusion and delaying thermal degradation.
Behenic acid is supplied as a crystalline powder in technical and cosmetic grades, with select grades meeting FCC and Ph.Eur. specifications for food and pharmaceutical applications. The substance is registered under REACH and classified under HS code 29159000. Packaging formats typically include 25 kg bags and bulk options depending on grade.
Physical Properties
| Melting Point | 79.95 °C |
| Boiling Point | 306 °C @ Press: 60 Torr |
| Density | 0.8221 g/cm³ @ Temp: 100 °C |
| Flash Point | 306°C/60mm |
| Appearance | white to cream crystals or Brown powder |
| Color | White to slightly yellow |
| Odor | faint odor |
| Form | Crystalline Powder |
| Water Solubility | Soluble in DMF (~3 mg/ml), hot methanol, water (0.15 mg/ml at 25°C), chloroform, and ethanol (2.18 mg/ml at 25°C). |
| Vapor Pressure | 0Pa at 25℃ |
| Refractive Index | nD100 1.4270 |
| Log P | 4.121-9.91 at 25℃ |
Trade & Regulatory
| HS Code | 29159000 |
Other Names
Docosanoic acidC22:0EXL 5B 95behenicNAA 222S
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