4-Bromo-3-methylpyrazole
- CAS NO.:13808-64-5
- Empirical Formula: C4H5BrN2
- Molecular Weight: 161
- MDL number: MFCD00005241
- EINECS: 237-456-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:26:10
What is 4-Bromo-3-methylpyrazole?
Chemical properties
white to cream-colored powder
The Uses of 4-Bromo-3-methylpyrazole
4-Bromo-3-methylpyrazole is an intermdiate used to prepare substituted piperidines as potent, selective, CNS-penetrant α4β2 nicotinic acetylcholine receptor potentiators. It is also used to prepare small molecular B2 receptor antagonists.
The Uses of 4-Bromo-3-methylpyrazole
4-Bromo-3-methyl-1H-pyrazole may be used in chemical synthesis.
Properties of 4-Bromo-3-methylpyrazole
| Melting point: | 77-79°C |
| Boiling point: | 259.9±20.0 °C(Predicted) |
| Density | 1.5638 |
| refractive index | 1.5182 (estimate) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | methanol: soluble0.25g/5mL, clear, colorless to yellow |
| form | Powder |
| pka | 13.27±0.50(Predicted) |
| color | White to cream |
| CAS DataBase Reference | 13808-64-5(CAS DataBase Reference) |
Safety information for 4-Bromo-3-methylpyrazole
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
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. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. 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 4-Bromo-3-methylpyrazole
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