4-Nitropyrazole
- CAS No.
- 2075-46-9
- Chemical Name:
- 4-Nitropyrazole
- Synonyms
- 4-NITRO-1H-PYRAZOLE;AKOS B001469;4-Notropyrazole;4-NITROPYRAZOLE;4-nitro-pyrazol;VITAS-BB TBB000667;4-nitro-1h-pyrazol;Pyrazole, 4-nitro-;4-Nitropyrazole>TIMTEC-BB SBB000042
- CBNumber:
- CB6418845
- Molecular Formula:
- C3H3N3O2
- Molecular Weight:
- 113.07
- MDL Number:
- MFCD00159626
- MOL File:
- 2075-46-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 4-Nitro-1H-pyrazole 97% | 696161 | 5g | $77.8 |
| 4-Nitropyrazole >98.0%(GC)(T) | N0862 | 5g | $23 |
| 4-Nitropyrazole >98.0%(GC)(T) | N0862 | 25g | $42 |
| 4-NITRO-1H-PYRAZOLE 97% | 27362 | 25G | $10 |
| 4-NITRO-1H-PYRAZOLE 97% | 27362 | 100G | $19 |
| More product size | |||
| Melting point | 160-164°C |
|---|---|
| Boiling point | 323°C(lit.) |
| Density | 1.552±0.06 g/cm3(Predicted) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| pka | 9.63±0.50(Predicted) |
| form | Crystalline Powder |
| color | White |
| λmax | 317nm(EtOH)(lit.) |
| InChI | InChI=1S/C3H3N3O2/c7-6(8)3-1-4-5-2-3/h1-2H,(H,4,5) |
| InChIKey | XORHNJQEWQGXCN-UHFFFAOYSA-N |
| SMILES | N1C=C([N+]([O-])=O)C=N1 |
| CAS DataBase Reference | 2075-46-9(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| NIST Chemistry Reference | 4-NO2-pyrazole(2075-46-9) |
| UNSPSC Code | 12352100 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H318 | |||||||||
| Precautionary statements | P264-P270-P280-P301+P312-P305+P351+P338-P501 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Faceshields, Gloves | |||||||||
| Hazard Codes | Xi,Xn | |||||||||
| Risk Statements | 22-41 | |||||||||
| Safety Statements | 26-39 | |||||||||
| WGK Germany | WGK 3 | |||||||||
| RTECS | UQ7880000 | |||||||||
| HazardClass | IRRITANT | |||||||||
| HS Code | 29331990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Eye Dam. 1 |
|||||||||
| NFPA 704 |
|
4-Nitropyrazole price More Price(42)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 696161 | 4-Nitro-1H-pyrazole 97% | 2075-46-9 | 5g | $77.8 | 2023-06-20 | Buy |
| TCI Chemical | N0862 | 4-Nitropyrazole >98.0%(GC)(T) | 2075-46-9 | 5g | $23 | 2026-04-30 | Buy |
| TCI Chemical | N0862 | 4-Nitropyrazole >98.0%(GC)(T) | 2075-46-9 | 25g | $42 | 2026-04-30 | Buy |
| AstaTech | 27362 | 4-NITRO-1H-PYRAZOLE 97% | 2075-46-9 | 25G | $10 | 2026-04-30 | Buy |
| AstaTech | 27362 | 4-NITRO-1H-PYRAZOLE 97% | 2075-46-9 | 100G | $19 | 2026-04-30 | Buy |
4-Nitropyrazole Chemical Properties,Uses,Production
Description
4-Nitropyrazole is a kind of low detonation velocity and high detonation pressure explosive, which has a promising future in the field of energetic materials. 4-Nitropyrazole is also used as raw material to synthesize 4-amino-3,5-dinitropyrazole, a useful intermediate for preparing trinitropyrazole. Currently, 4-nitro pyrazole is prepared by reacting with nitric acid, sulfuric acid, or nitric acid-trifluoroacetic anhydride mixtures. The reaction product contains a small amount of isomers of 4-nitropyrazole and some unknown by-products. To extend the application of 4-nitropyrazole, the crude product must be isolated and purified[1].
Uses
4-Nitropyrazole, is a building block for the synthesis of various pharmaceutical compounds, including inhibitors, and therapeutic agents. It can be used for the synthesis of highly selective, brain-penetrant aminopyrazole LRRK2 Inhibitor, as a potentially viable treatment for Parkinson''s disease.
Synthesis
288-13-1
2075-46-9
The general procedure for the synthesis of 4-nitropyrazole from pyrazole was as follows: pyrazole (8.5 g) was mixed with concentrated sulfuric acid (15 cm3) pre-cooled to 0°C, followed by the slow addition of cold concentrated nitric acid (18 cm3, density = 1.4 g/mL) under cooling in an ice-salt bath. The reaction mixture was heated under reflux conditions for 3 hours. After the reaction mixture was cooled to room temperature, additional nitration mixture (consisting of 6 cm3 concentrated sulfuric acid and 6 cm3 nitric acid) was added dropwise. The mixture was again heated under reflux conditions for 3 hours, cooled and left to stand overnight. The reaction solution was slowly poured into ice (80 g) and the precipitate was collected by filtration under reduced pressure, washed sequentially with cold water and cold ethanol and finally purified by recrystallization from toluene. The resulting 4-nitropyrazole was a white solid in 56% yield.
References
[1] Yüfang Wu. “Determination and thermodynamic modelling for 4-nitropyrazole solubility in (methanol + water), (ethanol + water) and (acetonitrile + water) binary solvent mixtures from T=(278.15 to 318.15) K.” Journal of Chemical Thermodynamics 103 (2016): Pages 276-284.
4-Nitropyrazole Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39927 | 58 |
| Hubei Lidu New Material Technology Co., Ltd | +86-19307248857 +86-19307248857 | 19307248857@163.com | China | 888 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5235 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18126 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20124 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718; +8613336195806 | sales@capot.com | China | 29640 | 60 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 | product@chemlin.com.cn | CHINA | 3009 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29819 | 58 |
| Jinan Carbotang Biotech Co.,Ltd. | +8615866703830 | figo.gao@foxmail.com | China | 8497 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5906 | 58 |
View Lastest Price from 4-Nitropyrazole manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-04-22 | 4-Nitropyrazole
2075-46-9
|
US $0.00 / kg | 1kg | 98% | 20TON | Hubei Lidu New Material Technology Co., Ltd | |
 |
2026-02-02 | 4-Nitropyrazole
2075-46-9
|
US $0.00-0.00 / KG | 1g | 99% | 2000tons | Shaanxi Dideu Medichem Co. Ltd | |
 |
2025-09-25 | 4-Nitropyrazole
2075-46-9
|
US $6.00-0.90 / KG | 1KG | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd |
-
- 4-Nitropyrazole
2075-46-9
- US $0.00 / kg
- 98%
- Hubei Lidu New Material Technology Co., Ltd
-
- 4-Nitropyrazole
2075-46-9
- US $0.00-0.00 / KG
- 99%
- Shaanxi Dideu Medichem Co. Ltd
-
- 4-Nitropyrazole
2075-46-9
- US $6.00-0.90 / KG
- 99%
- Henan Fengda Chemical Co., Ltd
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