Dodecyltrimethylammonium bromide
CAS: 1119-94-4
Category: Surfactants
| Purity | Reagent Grade ≥99%, High-Purity Grade ≥99.5%, Biological Grade ≥99% |
| Molecular Formula | C15H34BrN |
| Molecular Weight | 308.34 |
| Appearance | White to off-white crystalline powder or flakes |
| Packaging | 100 g, 500 g, 1 kg polyethylene-lined aluminum foil bags or amber glass bottles; bulk quantities packed in moisture-proof polyethylene-lined drums |
| Testing Indicators | Appearance — Visual inspection; Identification — FTIR spectroscopy and 1H NMR spectroscopy; Purity — HPLC or ion chromatography; Assay — Two-phase titration or potentiometric titration for quaternary ammonium content; Bromide content — Ion chromatography or argentometric titration; Water content — Karl Fischer titration; Residual solvents — GC analysis; Surface activity — Critical micelle concentration (CMC) determination. |
| Storage Notes | Store in a cool, dry, and well-ventilated place away from moisture, heat, and direct sunlight. Keep container tightly sealed. Avoid contact with strong oxidizing agents and incompatible chemicals. Store under dry conditions to prevent moisture absorption and caking. |
| Lead Time | 10 days |
Used as a cationic surfactant, phase-transfer catalyst, and antimicrobial agent. It is widely applied in chemical synthesis, biochemical research, protein and membrane studies, emulsification systems, disinfectant formulations, and preparation of functional surfactant materials.