Heptacosanoic acid
CAS 7138-40-1
EC 230-436-9
Formula C27H54O2
MW 410.72 g/mol
Oils, Fats & Waxes Personal Care & CosmeticsFood & Nutrition Emulsification & DispersionHumectant & Moisturizing
Description
Heptacosanoic acid (CAS 7138-40-1, EC 230-436-9) is a straight-chain saturated fatty acid with 27 carbon atoms, also known as carboceric acid or heptacosylic acid, abbreviated C27:0. It carries no assigned E-code and belongs to the odd-chain fatty acid group within the oils, fats, and waxes category.
In personal care formulations, heptacosanoic acid contributes to emulsion stability by integrating into lipid bilayer structures, helping to regulate water loss across skin barriers. In food and nutrition research, it serves as an analytical reference standard and is under investigation as a dietary biomarker for dairy fat intake, where its odd-chain structure distinguishes it from even-chain counterparts.
Heptacosanoic acid is supplied as a powder or crystalline solid and is subject to REACH registration requirements for quantities above one tonne per year within the EU. Procurement teams should confirm purity grade and certificate of analysis requirements, as specifications vary between reference-grade and technical-grade material.
In personal care formulations, heptacosanoic acid contributes to emulsion stability by integrating into lipid bilayer structures, helping to regulate water loss across skin barriers. In food and nutrition research, it serves as an analytical reference standard and is under investigation as a dietary biomarker for dairy fat intake, where its odd-chain structure distinguishes it from even-chain counterparts.
Heptacosanoic acid is supplied as a powder or crystalline solid and is subject to REACH registration requirements for quantities above one tonne per year within the EU. Procurement teams should confirm purity grade and certificate of analysis requirements, as specifications vary between reference-grade and technical-grade material.
Physical Properties
| Melting Point | 88-89 °C |
| Boiling Point | 458.37°C (rough estimate) |
| Density | 0.8898 (rough estimate) |
| Color | White to Almost white |
| Form | powder to crystal |
| Water Solubility | Water: Slightly soluble |
| Refractive Index | 1.4740 (estimate) |
Trade & Regulatory
| HS Code | 2915.90.1800 |
| WGK (Germany) | 3 |
Other Names
heptacosylic acidC27:0Carboceric acidHeptacosanoic aciheptacosanic acid
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