Heneicosanoic acid

Heneicosanoic acid (CAS 2363-71-5) is a saturated C21 straight-chain fatty acid used as a reference standard, specialty emulsifier, and functional lubricant component.

Where is Heneicosanoic acid used?

• Food and nutrition research: internal standard for fatty acid profiling by GC analysis, where its odd-chain status avoids interference with even-chain lipid peaks
• Cosmetics: modifies texture, spreadability, and film-forming behavior in emollient systems and wax blends for skin-care and hair-care products
• Lubricants: boundary lubricant additive or base component in specialty greases where controlled chain length and saturation are required
• It also serves as a biochemical tracer in lipid metabolism research.

Good to know: Its odd-chain carbon structure makes it commercially distinct from even-chain fatty acids, supporting analytical and formulation roles that even-chain alternatives cannot fulfill.

Commercial specifications

• Research-grade and high-purity analytical grades
• Purity typically 98% or above
• Packaging from small-quantity laboratory units to bulk quantities