α-Bromocinnamaldehyde
- CAS NO.：5443-49-2
- Empirical Formula: C9H7BrO
- Molecular Weight: 211.06
- MDL number: MFCD00006965
- EINECS: 226-637-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:26:51
What is α-Bromocinnamaldehyde?
Chemical properties
light yellow to ochre crystalline powder
The Uses of α-Bromocinnamaldehyde
α-Bromocinnamaldehyde was used in the synthesis of 3,4-diaryl 1H-pyrazoles. It was also used in the preparation of spiro imidazolidine-oxazolidine intermediate via guanidinium ylide mediated aziridination.
General Description
α-Bromocinnamaldehyde is commonly employed as an anti-mildew agent in commercial products.
Hazard
Causes somnolence in oral, intraperitoneal, and subcutaneous lethal-dose studies of rats; A skin and strong eye irritant; Toxic by ingestion;
Synthesis
The synthesis of α-Bromocinnamaldehyde is as follows:
The cinnamaldehyde and glacial acetic acid were stirred and bromine was added after cooling. Then add anhydrous potassium carbonate, reactants heated reflux for half an hour, cooling, precipitation coarse product. The crude product is dissolved by ethanol and recrystallized to obtain the finished product with a yield of about 80%.
Properties of α-Bromocinnamaldehyde
| Melting point: | 66-68 °C(lit.) |
| Boiling point: | 304.4±30.0 °C(Predicted) |
| Density | 1.4270 (rough estimate) |
| refractive index | 1.5720 (estimate) |
| storage temp. | 2-8°C |
| form | Crystalline Powder |
| color | Light yellow to ochre |
| CAS DataBase Reference | 5443-49-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Propenal, 2-bromo-3-phenyl-(5443-49-2) |
Safety information for α-Bromocinnamaldehyde
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for α-Bromocinnamaldehyde
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