3-Nitro-1H-pyrazole
- CAS No.
- 26621-44-3
- Chemical Name:
- 3-Nitro-1H-pyrazole
- Synonyms
- 5-NITRO-1H-PYRAZOLE;3-nitropyrazole;3(5)-Nitropyrazole;5-Nitro-1H-pyrazol;VITAS-BB TBB000666;Pyrazole, 3-nitro-;3-Nitropyrazole>3-Nitro-1H-pyrazoL;3-Nitro-1H-pyrazole;SALOR-INT L119687-1EA
- CBNumber:
- CB7744572
- Molecular Formula:
- C3H3N3O2
- Molecular Weight:
- 113.07
- MDL Number:
- MFCD00159621
- MOL File:
- 26621-44-3.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 173-175 °C |
|---|---|
| Boiling point | 334.0±15.0 °C(Predicted) |
| Density | 1.552±0.06 g/cm3(Predicted) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | soluble in Methanol |
| form | powder to crystal |
| pka | 8.32±0.10(Predicted) |
| color | White to Orange to Green |
| InChI | InChI=1S/C3H3N3O2/c7-6(8)3-1-2-4-5-3/h1-2H,(H,4,5) |
| InChIKey | MZRUFMBFIKGOAL-UHFFFAOYSA-N |
| SMILES | N1C=CC([N+]([O-])=O)=N1 |
| CAS DataBase Reference | 26621-44-3(CAS DataBase Reference) |
| NIST Chemistry Reference | 3(5)-nitropyrazole(26621-44-3) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P305+P351+P338 | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22-36/37/38 | |||||||||
| Safety Statements | 22-26-36/37/39 | |||||||||
| HazardClass | IRRITANT | |||||||||
| HS Code | 2933199090 | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
3-Nitro-1H-pyrazole price More Price(84)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | N0937 | 3-Nitropyrazole >98.0%(GC) | 26621-44-3 | 1g | $54 | 2026-04-30 | Buy |
| TCI Chemical | N0937 | 3-Nitropyrazole >98.0%(GC) | 26621-44-3 | 5g | $181 | 2026-04-30 | Buy |
| ChemScene | CS-W002457 | 3-Nitropyrazole ≥98% | 26621-44-3 | 10g | $6 | 2026-06-04 | Buy |
| ChemScene | CS-W002457 | 3-Nitropyrazole ≥98% | 26621-44-3 | 25g | $11 | 2026-06-04 | Buy |
| ChemScene | CS-W002457 | 3-Nitropyrazole ≥98% | 26621-44-3 | 100g | $38 | 2026-06-04 | Buy |
3-Nitro-1H-pyrazole Chemical Properties,Uses,Production
Chemical Properties
light brown powder
Uses
3-Nitro-1H-pyrazole is a pyrazole compound with a nitro functional group, widely used in organic synthesis. The substance can be used in reaction systems such as substitution, nitration or condensation for the preparation of other heterocyclic compounds.
Synthesis
7119-95-1
26621-44-3
The general procedure for the synthesis of 3-nitro-1H-pyrazole from 1-nitropyrazole is as follows: Step A: 1-nitropyrazole (3.45 g, 30.5 mmol) was mixed with benzonitrile (33 mL) and heated with stirring at 180 °C for 3 hours. Upon completion of the reaction, the mixture was cooled to room temperature, diluted with hexane and stirring was continued for 20 min at room temperature. The precipitated solid was collected by filtration to afford 3-nitro-1H-pyrazole as a tan solid (3.16 g, 91% yield). Product characterization data: 1H NMR (300 MHz, DMSO-d6) δ 13.94 (br s, 1H), 8.03 (d, J = 2.4 Hz, 1H), 7.03 (t, J = 2.4 Hz, 1H).
References
[1] Archiv der Pharmazie, 1995, vol. 328, # 4, p. 349 - 358
[2] Patent: WO2010/29461, 2010, A1. Location in patent: Page/Page column 63-64
[3] Patent: WO2012/30944, 2012, A2. Location in patent: Page/Page column 97
[4] Patent: US2012/53174, 2012, A1. Location in patent: Page/Page column 45
[5] Patent: WO2012/30924, 2012, A1. Location in patent: Page/Page column 124
3-Nitro-1H-pyrazole Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Nantong Haigine Pharma Technology Co., Ltd | 0513-86266699-8010 19040080082 | sales@haigine.com | China | 71 | 58 |
| Nanjing Hengweisheng Pharmaceutical Technology Co., Ltd | 13357739131 13357739131 | 3991044086@qq.com | China | 710 | 58 |
| Nanjing Jubai Biomedical Technology Co., Ltd. | 13585203734 | info@jbzml.com | China | 200 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Wuhan Chemwish Technology Co., Ltd | 86-027-67849912 | sales@chemwish.com | China | 35884 | 56 |
| Capot Chemical Co., Ltd | +86 (0) 571 85 58 67 18 | China | 18187 | 66 | |
| Beijing Ouhe Technology Co., Ltd | 13552068683 13522913783 | 2355560935@qq.com | China | 11777 | 60 |
View Lastest Price from 3-Nitro-1H-pyrazole manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2019-07-06 | 3-Nitro-1H-pyrazole
26621-44-3
|
$8.00 | 1kg | 99% | 10tons | Career Henan Chemical Co |
-
- 3-Nitro-1H-pyrazole
26621-44-3
- $8.00
- 99%
- Career Henan Chemical Co
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