Ethyl stearate
CAS: 111-61-5
Category: Organic Intermediates
| Purity | Industrial Grade ≥98%, Cosmetic Grade ≥99%, High-Purity Grade ≥99.5% |
| Molecular Formula | C20H40O2 |
| Molecular Weight | 312.53 |
| Appearance | Colorless to pale yellow oily liquid or low-melting solid with a faint fatty odor |
| Packaging | 25 kg/drum, 180 kg/steel drum, 200 kg/polyethylene-lined drum, or customized industrial packaging |
| Testing Indicators | Appearance — Visual inspection; Identification — FTIR spectroscopy and GC-MS; Purity — Gas chromatography with flame ionization detection (GC-FID); Acid value — Potentiometric titration (ASTM D664); Ester value — Saponification/titration method (ASTM D1980); Water content — Karl Fischer titration (ASTM E203); Density — Digital density meter (ASTM D4052); Refractive index — Abbe refractometer (ASTM D1218); Peroxide value — Iodometric titration (AOCS Cd 8b-90). |
| Storage Notes | Store in a cool, dry, and well-ventilated area away from direct sunlight and heat sources. Keep containers tightly sealed to prevent oxidation and contamination. Avoid contact with strong acids, strong bases, and oxidizing agents. Store under inert atmosphere for long-term storage when high purity is required. |
| Lead Time | 10 days |
Ethyl stearate is a fatty acid ethyl ester produced from stearic acid and ethanol. It is used as an emollient and conditioning agent in cosmetics, a lubricant additive, a solvent for hydrophobic substances, a flavor and fragrance ingredient, and an intermediate in organic synthesis. It is also applied in pharmaceutical formulations and specialty chemical manufacturing.