C6-dihydroceramide
Overview
C6-Dihydroceramide is a synthetic short-chain ceramide derivative where the sphingosine base contains six carbon atoms in its acyl chain. Unlike natural ceramides with longer carbon chains (typically C16-C24), this analog is more water-soluble while maintaining key biological functions. It serves as an important tool compound in lipid research, particularly for studying ceramide metabolism pathways without the complications of natural ceramides' poor solubility. The compound has gained significance in both academic research and industrial applications due to its structural similarity to natural ceramides combined with enhanced experimental versatility. Many pharmaceutical and cosmetic manufacturers use C6-Dihydroceramide as a reference standard or active ingredient prototype due to its well-characterized properties and relative stability compared to longer-chain variants.
Physical and Chemical Properties
As an amphiphilic molecule, C6-Dihydroceramide exhibits both hydrophilic and hydrophobic characteristics owing to its polar head group and short hydrocarbon chain. The compound typically appears as a crystalline solid at room temperature with moderate thermal stability. Its LogP value (indicating lipophilicity) is significantly lower than natural ceramides, contributing to better solubility in polar organic solvents. Spectroscopic analysis shows characteristic absorption peaks in the infrared spectrum around 3300 cm-1 (N-H stretch) and 1650 cm-1 (amide I band). Mass spectrometry typically reveals a [M+H]+ ion corresponding to its molecular weight. The compound shows pH-dependent behavior, with optimal stability around neutral pH (6-8). Under acidic conditions, the amide bond may hydrolyze over time.
Main Applications
In research laboratories, C6-Dihydroceramide serves three primary functions: as a metabolic intermediate in sphingolipid pathway studies, as a membrane component in biophysical experiments, and as a positive control in analytical methods like LC-MS. Its controlled structure makes it invaluable for tracking ceramide-mediated cellular processes such as apoptosis and stress responses. The cosmetic industry frequently incorporates C6-Dihydroceramide in advanced skincare formulations, particularly those targeting barrier repair and moisture retention. While less common in final products than natural ceramides (due to regulatory considerations), it remains an important raw material for efficacy testing and prototype development. Some specialized drug delivery systems also utilize this compound as a lipid component due to its predictable behavior.
Safety and Storage
Standard laboratory precautions should be followed when handling C6-Dihydroceramide. While not classified as acutely toxic, the powder can cause respiratory irritation if inhaled and mild irritation upon skin contact. Appropriate personal protective equipment (lab coat, nitrile gloves, eye protection) is recommended, especially when working with bulk quantities. Long-term storage requires protection from oxidation and humidity. Argon purging of vials before sealing can prevent oxidative degradation. For extended storage beyond six months, temperatures of -80°C are preferable. Solutions in organic solvents should be prepared freshly when possible, as repeated freeze-thaw cycles can lead to precipitation or decomposition. Suppliers typically provide stability data specific to their product grade.
B2B Procurement Guide
When sourcing C6-Dihydroceramide for commercial or research purposes, buyers should prioritize suppliers that provide comprehensive analytical documentation. Certificates of Analysis (CoA) should specify purity (HPLC or GC), residual solvent content, and water percentage. For GMP applications, additional documentation like DMF references may be required. Bulk purchasing (100g+) can reduce per-unit costs by 30-50% compared to research quantities, but minimum order quantities apply. Most manufacturers offer custom synthesis options for derivatives or isotope-labeled versions. Lead times typically range from 2-8 weeks depending on grade and quantity. Import/export regulations vary by country due to its biochemical nature, so proper HS codes and material safety data sheets should be confirmed beforehand.