Overview
Hexanoylsphingosine is a synthetic short-chain ceramide derivative, chemically classified as an N-acylated sphingosine. It mimics natural ceramides, which are critical components of cell membranes and play roles in cellular signaling pathways. As a research chemical, it is primarily used to study ceramide-mediated processes such as apoptosis, cell differentiation, and skin barrier function. Its shorter acyl chain (hexanoyl) compared to natural ceramides enhances solubility for experimental applications.
Physical and Chemical Properties
This compound appears as a crystalline or amorphous powder with low water solubility but good solubility in organic solvents like chloroform or methanol. Its melting point range (80-85°C) reflects its semi-synthetic nature. Structurally, the hexanoyl group (6-carbon chain) replaces the longer fatty acid chains (typically 16-24 carbons) found in natural ceramides. This modification reduces hydrophobicity while retaining biological activity in experimental settings.
Main Applications
In pharmaceuticals, hexanoylsphingosine serves as a tool compound to investigate ceramide-related pathways, particularly in cancer research where ceramides induce tumor cell death. It is also used in dermatological studies to model skin barrier dysfunction. The cosmetic industry employs it in high-end skincare formulations, often combined with cholesterol and free fatty acids to recreate the skin's natural lipid matrix. These blends improve moisture retention and repair compromised barriers in conditions like eczema.
Safety and Storage
As a bioactive lipid, proper handling is essential. Use fume hoods when weighing powder, and avoid generating airborne dust. Skin contact may cause irritation due to its membrane-disrupting properties. Long-term stability requires storage at -20°C under inert gas (argon or nitrogen) to prevent oxidation. Aliquot working solutions to minimize freeze-thaw cycles, which can degrade the compound.
B2B Procurement Guide
Bulk buyers should request detailed analytical reports including NMR and mass spectrometry data to confirm identity. For cosmetic use, ensure suppliers provide documentation compliant with ISO 22716 (Cosmetics GMP). Lead times may vary significantly (2-8 weeks) due to custom synthesis requirements. Consider minimum order quantities (MOQs) – some suppliers offer 10-gram trial batches, while production-scale purchases typically start at 1 kilogram.
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