4-Fluoro-1H-pyrazole
- CAS No.
- 35277-02-2
- Chemical Name:
- 4-Fluoro-1H-pyrazole
- Synonyms
- 4-Fluropyrazole;4-Fluoro-1H-pyrazole;1H-Pyrazole, 4-fluoro-;4-Fluoro-1H-pyrazole 95%;4-Fluoro-1H-pyrazole;4-Fluoro-1H-pyrazole/4-Fluoropyrazole;4-Fluoro-1H-pyrazole4-Fluoro-1H-pyrazole
- CBNumber:
- CB31481942
- Molecular Formula:
- C3H3FN2
- Molecular Weight:
- 86.07
- MDL Number:
- MFCD10699125
- MOL File:
- 35277-02-2.mol
| Product description | Number | Pack Size | Price |
| 4-Fluoro-1H-pyrazole 95% | 747858 | 250MG | $171 |
| 4-Fluoropyrazole | F597945 | 1g | $440 |
| 4-Fluoro-1H-pyrazole | 3H31-3-60 | 5G | $557 |
| 4-Fluoro-1H-pyrazole | Z4640 | 5g | $601 |
| 4-Fluoro-1H-pyrazole | J96329 | 10g | $750 |
| More product size | |||
| Melting point | 38-40 °C |
|---|---|
| Boiling point | 193℃ |
| Density | 1.320 |
| Flash point | 70℃ |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| pka | 13.66±0.50(Predicted) |
| form | low melting solid |
| color | Colourless to off-white |
| InChI | InChI=1S/C3H3FN2/c4-3-1-5-6-2-3/h1-2H,(H,5,6) |
| InChIKey | RYXJXPHWRBWEEB-UHFFFAOYSA-N |
| SMILES | N1C=C(F)C=N1 |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS05,GHS07 |
|---|---|
| Signal word | Danger |
| Hazard statements | H302-H315-H318-H335 |
| Precautionary statements | P280-P301+P312+P330-P302+P352-P305+P351+P338+P310 |
| HS Code | 2933199090 |
4-Fluoro-1H-pyrazole price More Price(26)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 747858 | 4-Fluoro-1H-pyrazole 95% | 35277-02-2 | 250MG | $171 | 2025-07-31 | Buy |
| TRC | F597945 | 4-Fluoropyrazole | 35277-02-2 | 1g | $440 | 2021-12-16 | Buy |
| SynQuest Laboratories | 3H31-3-60 | 4-Fluoro-1H-pyrazole | 35277-02-2 | 5G | $557 | 2021-12-16 | Buy |
| AK Scientific | Z4640 | 4-Fluoro-1H-pyrazole | 35277-02-2 | 5g | $601 | 2021-12-16 | Buy |
| AK Scientific | J96329 | 4-Fluoro-1H-pyrazole | 35277-02-2 | 10g | $750 | 2021-12-16 | Buy |
4-Fluoro-1H-pyrazole Chemical Properties,Uses,Production
Uses
4-Fluoropyrazole is used in preparation and palladium catalyzed cross-coupling reactions of tributylstannyl fluoropyrazole.
Synthesis
761-88-6
35277-02-2
General procedure for the synthesis of 4-fluoro-1H-pyrazole using the compound (CAS: 761-88-6) as starting material: dihydrazine (4.48 g, 0.043 mol) was added to (Z)-3-(dimethylamino)-2-fluoroacrylaldehyde (5 g, 0.043 mol) in 100 mL of 40% (V/V) aqueous ethanol solution. Subsequently, the reaction mixture was heated at 55 °C for 30 min. After completion of the reaction, the mixture was cooled to room temperature and the pH was adjusted with saturated aqueous sodium bicarbonate to 9. The aqueous layer was extracted with ether and the organic layers were combined and dried with anhydrous sodium sulfate. Finally, the solvent was removed by distillation under reduced pressure to give 3.6 g of the title compound 28-d as a yellow oil in 77% yield.
References
[1] Patent: WO2013/40790, 2013, A1. Location in patent: Page/Page column 87; 88
[2] Patent: WO2013/43624, 2013, A1. Location in patent: Page/Page column 87; 88
4-Fluoro-1H-pyrazole Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | +86-（0）57185586718; +8613336195806 | sales@capot.com | China | 29735 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 13505 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21615 | 55 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 | product@chemlin.com.cn | CHINA | 3009 | 60 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| Hainan Xiyuan Chemical Technology Co., Ltd. | +86-15008981366 | 15008981366@163.com | CHINA | 9 | 58 |
| Jinan Carbotang Biotech Co.,Ltd. | +8615866703830 | figo.gao@foxmail.com | China | 8497 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28172 | 58 |
| Accela ChemBio Inc. | +1-858-6993322 | info@accelachem.com | United States | 21193 | 58 |
| Changzhou Carman Chemical Co., Ltd. | 15061933924 | CHINA | 514 | 58 |
View Lastest Price from 4-Fluoro-1H-pyrazole manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-11-14 | 4-Fluoro-1H-pyrazole
35277-02-2
|
US $0.00 / KG | 1KG | 97% | 500kgs/month | WUHAN FORTUNA CHEMICAL CO., LTD | |
 |
2025-04-04 | 4-Fluoro-1H-pyrazole
35277-02-2
|
US $0.00-0.00 / kg | 1kg | 98% | 1Ton | Henan Aochuang Chemical Co.,Ltd. | |
 |
2024-11-26 | 4-Fluoro-1H-pyrazole
35277-02-2
|
US $0.00-0.00 / kg | 1kg | 98% | 1 ton | Nanjing Fred Technology Co., Ltd |
-
- 4-Fluoro-1H-pyrazole
35277-02-2
- US $0.00 / KG
- 97%
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- 4-Fluoro-1H-pyrazole
35277-02-2
- US $0.00-0.00 / kg
- 98%
- Henan Aochuang Chemical Co.,Ltd.
-
- 4-Fluoro-1H-pyrazole
35277-02-2
- US $0.00-0.00 / kg
- 98%
- Nanjing Fred Technology Co., Ltd
