3-Aminopyrazole-4-carboxylic acid
- CAS NO.：41680-34-6
- Empirical Formula: C4H5N3O2
- Molecular Weight: 127.1
- MDL number: MFCD00005239
- EINECS: 255-493-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 02:09:17
What is 3-Aminopyrazole-4-carboxylic acid?
Chemical properties
Almost white to beige crystalline powder
The Uses of 3-Aminopyrazole-4-carboxylic acid
3-Amino-1H-pyrazole-4-carboxylic Acid, is a heterocyclic building block used for the synthesis of more complex pharmaceutical and biologically active compounds, including inhibitors. It can be used for the preparation of some impurities and/or degradation products of Zaleplon (Z145000), and also for Arylsulfonamidopiperidone derivatives as a novel class of factor Xa inhibitors.
Properties of 3-Aminopyrazole-4-carboxylic acid
| Melting point: | 135 °C (dec.) (lit.) |
| Boiling point: | 235.85°C (rough estimate) |
| Density | 1.4748 (rough estimate) |
| refractive index | 1.5000 (estimate) |
| storage temp. | 2-8°C |
| pka | 15.28±0.50(Predicted) |
| color | White |
| CAS DataBase Reference | 41680-34-6(CAS DataBase Reference) |
Safety information for 3-Aminopyrazole-4-carboxylic acid
| 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 3-Aminopyrazole-4-carboxylic acid
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