
Tetrabutylammonium bromide Chemical Properties
| Melting point | 102-106 °C(lit.) |
| Boiling point | 102 °C |
| density | 1.039 g/mL at 25 °C |
| vapor pressure | 0Pa at 25℃ |
| refractive index | n20/D 1.422 |
| Fp | 100℃ |
| storage temp. | Store below +30°C. |
| solubility | H2O: 0.1 g/mL, clear, colorless |
| pka | 0[at 20 ℃] |
| form | Crystalline Powder |
| Specific Gravity | 1.007 |
| color | White to slightly cream |
| Odor | Amine like |
| PH | 3.5 to 7.0 (50 g/L, 25 ℃) |
| Water Solubility | 600 g/L (20 ºC) |
| Sensitive | Hygroscopic |
| λmax | λ: 240 nm Amax: 0.04 |
| λ: 250 nm Amax: 0.03 | |
| λ: 260 nm Amax: 0.02 | |
| λ: 500 nm Amax: 0.02 | |
| BRN | 3570983 |
| Stability: | Stable. Incompatible with strong oxidizing agents. Protect from moisture. |
| InChIKey | JRMUNVKIHCOMHV-UHFFFAOYSA-M |
| LogP | 0.839 at 25℃ |
| CAS DataBase Reference | 1643-19-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Tetra-N-butylammonium bromide(1643-19-2) |
| EPA Substance Registry System | Tetrabutylammonium bromide (1643-19-2) |
| Hazard Codes | Xi,Xn |
| Risk Statements | 36/37/38-22 |
| Safety Statements | 26-36-37/39 |
| WGK Germany | 3 |
| F | 3 |
| Hazard Note | Irritant |
| TSCA | Yes |
| HS Code | 29239000 |
Product Application of Tetrabutylammonium Bromide CAS#1643-19-2
Tetrabutylammonium bromide is widely used as a phase transfer catalyst in organic synthesis, particularly in the preparation of pharmaceutical intermediates such as benzyltriethylammonium chloride, ethyl cinnamate, and pseudoionone.
It is also applied in the synthesis of organic pharmaceutical compounds, including anti-infective agents such as bacampicillin and sultamicillin. In addition, tetrabutylammonium bromide can serve as a catalyst in the production of novel mechanism-based antidiabetic drugs, such as dapagliflozin.
Company Profile
Shandong Furuida Chemical Co., Ltd. is a global-oriented start-up chemical foreign trade enterprise situated in the core chemical industrial zone of Shandong Province. Equipped with self-owned standardized factories, we achieve integrated operations covering production, full-process quality control, cross-border trade and global logistics, with independent manufacturing capacity and global market development capabilities.
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With global business coverage across Asia, Europe, America, the Middle East and other regions, we primarily serve domestic and overseas chemical manufacturers, end-processing factories and cross-border traders, delivering high-quality, cost-effective chemical raw materials and standardized professional services worldwide.


