Pentacosanoic acid

Pentacosanoic acid (CAS 506-38-7), also known as hyenic acid, is a saturated C25 fatty acid used as a reference standard and functional ingredient in food, nutrition, and personal care formulations.

Where is Pentacosanoic acid used?

• Analytical calibration and biomarker research: odd-chain structure
• Food and nutrition research: certified reference standard for quantifying odd-chain fatty acids in plasma, dairy and tissue samples
• Personal care: emollient systems and wax blends requiring controlled melting behaviour and film-forming consistency
• Emulsifying properties stabilise water-in-oil systems in topical creams and balms
• Rheology modification contributes to structural integrity of anhydrous formulations
• Lipsticks and solid serums rely on it where stability is paramount.

Commercial specifications

• High-purity research and reference grades, typically ≥98% or ≥99% purity
• Packaging from small laboratory quantities to larger industrial-scale quantities