3,5-Dimethyl-4-nitro-1H-pyrazole
Pharmaceutical Materials 2025-03-02
CAS Number: 14531-55-6
Molecular Formula: C5H7N3O2
Molecular Weight: 141.13 g/mol
Appearance: White to pale yellow crystalline powder
Melting Point: 123-125°C
Boiling Point: 304.5°C
Usage: Used as an intermediate in chemical synthesis.
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| Property | Details |
|---|---|
| Basic Information | |
| Name | 3.5-Dimethyl-4-nitro-1H-pyrazole |
| CAS Number | 14531-55-6 |
| Molecular Formula | C5H7N3O2 |
| Molecular Weight | 141.128 g/mol |
| Physical Properties | |
| Appearance | Light white crystalline powder |
| Density | 1.339 g/cm³ (or 1.3±0.1 g/cm³) |
| Melting Point | 123-125ºC |
| Boiling Point | 304.5°C at 760 mmHg (or 304.5±37.0°C at 760 mmHg) |
| Flash Point | 138°C (or 138.0±26.5°C) |
| Vapor Pressure | 0.00157 mmHg at 25°C (or 0.0±0.6 mmHg at 25°C) |
| Refractive Index | 1.578 |
| Stability and Reactivity | |
| Chemical Stability | Generally stable |
| Hazardous Decomposition Products | Carbon monoxide, carbon dioxide, nitrogen oxides (NOx) |
| Safety Information | |
| Hazards to Skin | Causes skin irritation (Skin corrosion/irritation, Category 2) |
| Hazards to Eyes | Causes serious eye irritation (Serious damage/irritation to eyes, Category 2A) |
| Precautions | Wear protective gloves, goggles, and protective clothing. Thoroughly wash hands after handling. |
| Usage | Used as an intermediate in chemical synthesis. |
