Pentadecanoic Acid (CAS 1002-84-2) is a straight-chain saturated fatty acid with fifteen carbon atoms, often written as C15:0. Its carbon chain has an odd number of carbons, unlike most fatty acids in vegetable oils, which have even-numbered chains. This gives it a particular role in analytical and biochemical laboratories. TCI lists it among its colloidal quantum dot research reagents because long-chain fatty acids act as surface ligands in nanocrystal synthesis. Pentadecanoic acid is also used as an internal standard in lipid analysis and as a material for nutrition research.
Researchers choose this material because its molecule has two useful parts: a carboxylic acid group that can bind to metal surfaces, and a long hydrophobic alkyl chain. In quantum dot synthesis, fatty acids bind to metal atoms on the nanocrystal surface. This controls particle growth, prevents aggregation and helps the particles disperse well in nonpolar solvents. Ligand chain length affects both growth kinetics and the spacing between particles, so C15:0 is a useful option alongside other fatty acids. In lipid analysis, its fairly low levels in many natural samples make it a good candidate internal standard for measuring other fatty acids accurately.
In Indonesian laboratories, Pentadecanoic Acid is used by university materials science groups, nanotechnology research centres and research institutes working on colloidal semiconductor nanocrystals and optoelectronic materials. Food, agricultural and biochemistry laboratories use it as a reference compound and internal standard in chromatographic fatty acid profiling. Nutrition researchers studying odd-chain fatty acids also use it. Because it is a branded TCI reagent, laboratories can expect consistent quality from batch to batch, which matters for repeatable synthesis work and validated analytical methods.
- Colloidal quantum dot synthesis: the carboxylic acid group binds to surface metal atoms on nanocrystals, controls particle growth and prevents aggregation during colloidal synthesis.
- Nanocrystal surface ligand studies: its C15 chain length lets researchers compare how ligand length affects growth kinetics, interparticle spacing and dispersion in nonpolar solvents.
- Internal standard for lipid analysis: because it is fairly scarce in many natural samples, it works well as an internal standard for quantifying fatty acids by chromatographic methods.
- Fatty acid profiling in food and agricultural samples: as an odd-chain saturated fatty acid, it is a clear reference compound when characterising the lipid makeup of oils, fats and biological materials.
- Nutrition and biochemistry research: it is used to study odd-chain fatty acids, a group that is attracting more research attention than the even-chain fatty acids common in vegetable oils.
| Brand | TCI (product code P0035) |
|---|---|
| CAS number | 1002-84-2 |
| Molecular formula | — |
| Purity | — |
| Category | Materials Science > Electronic Materials > Colloidal Quantum Dot (QD) Research Reagents |
| Pack sizes | as listed in the current TCI catalogue; please contact AMI Scientific for available options |
| Physical form | solid at room temperature (saturated long-chain fatty acid) |
| Storage | keep tightly closed in a cool, dry and dark place; follow the storage conditions on the product label and SDS |
Store Pentadecanoic Acid in its original, tightly sealed container in a cool, dry, well-ventilated area, away from direct sunlight, heat sources and strong oxidising agents. Always follow the storage temperature on the product label and Safety Data Sheet. Close the container promptly after use to protect the material from moisture and contamination. This matters most when the reagent is used as an analytical internal standard or in sensitive nanocrystal synthesis. Use clean glass or compatible chemically resistant containers when weighing out or making solutions. When handling the material, wear standard laboratory protective equipment, including safety glasses, gloves and a lab coat. Avoid creating or breathing in dust, and avoid contact with skin and eyes. Weigh and handle it in a well-ventilated area or fume hood. Read the Safety Data Sheet before use, and dispose of residues and contaminated materials according to local regulations and your institution's waste procedures.
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