7-Bromo-1H-pyrazolo[4,3-c]pyridine
![7-Bromo-1H-pyrazolo[4,3-c]pyridine Structure](CAS/20150408/GIF/1256821-58-5.gif)
- CAS No.
- 1256821-58-5
- Chemical Name:
- 7-Bromo-1H-pyrazolo[4,3-c]pyridine
- Synonyms
- 7-Bromo-1H-pyrazolo[4,3-c]pyridine;7-BroMo-1H-pyrazolo[4,3-c...;1H-Pyrazolo[4,3-c]pyridine,7-broMo-;7-Bromo-1H-pyrazolo[4,3-c]pyridine
- CBNumber:
- CB42565455
- Molecular Formula:
- C6H4BrN3
- Molecular Weight:
- 198.02
- MDL Number:
- MFCD18256789
- MOL File:
- 1256821-58-5.mol
- MSDS File:
- SDS
| Boiling point | 357.5±22.0 °C(Predicted) |
|---|---|
| Density | 1.894±0.06 g/cm3(Predicted) |
| storage temp. | Sealed in dry,Room Temperature |
| form | solid |
| pka | 9.46±0.40(Predicted) |
| Appearance | yellow solid |
| InChI | InChI=1S/C6H4BrN3/c7-5-3-8-1-4-2-9-10-6(4)5/h1-3H,(H,9,10) |
| InChIKey | AIFRKKWUAVZXQP-UHFFFAOYSA-N |
| SMILES | C1=NC=C(Br)C2NN=CC1=2 |
| UNSPSC Code | 12352200 |
| NACRES | NA.21 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS06 |
|---|---|
| Signal word | Danger |
| Hazard statements | H301 |
| Precautionary statements | P301+P310 |
| Hazard Codes | T |
| Risk Statements | 25 |
| Safety Statements | 45 |
| RIDADR | UN 2811 6.1 / PGIII |
| WGK Germany | 3 |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| Hazard Classifications | Acute Tox. 3 Oral |
7-Bromo-1H-pyrazolo[4,3-c]pyridine price More Price(48)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | BLN00050 | 7-Bromo-1H-pyrazolo[4,3-c]pyridine Aldrich | 1256821-58-5 | 1g | $1490 | 2026-04-30 | Buy |
| Biosynth | GAC82158 | 7-Bromo-1H-pyrazolo[4,3-c]pyridine | 1256821-58-5 | 250mg | $345 | 2026-06-04 | Buy |
| Biosynth | GAC82158 | 7-Bromo-1H-pyrazolo[4,3-c]pyridine | 1256821-58-5 | 2.5g | $1563.5 | 2026-06-04 | Buy |
| Activate Scientific | AS12122 | 7-Bromo-1H-pyrazolo[4,3-c]pyridine 97% | 1256821-58-5 | 1g | $150 | 2026-06-04 | Buy |
| Activate Scientific | AS12122 | 7-Bromo-1H-pyrazolo[4,3-c]pyridine 97% | 1256821-58-5 | 5g | $653 | 2026-06-04 | Buy |
7-Bromo-1H-pyrazolo[4,3-c]pyridine Chemical Properties, Uses, Production
Uses
7-Bromo-1H-pyrazolo[4,3-c]pyridine is used as a pharmaceutical intermediate. It can be used in the preparation of pyrazolylsulphonamide compounds.
Synthesis
Preparation of 7-bromo-1H-pyrazolo[4,3-c]pyridine (compound 70a): To a solution of 5-bromo-4-chloro-pyridine-3-carbaldehyde (15 g, 68.04 mmol) in DMSO (300 mL) was added hydrazine hydrate (13.7 mL, 276.62 mmol) at 0 °C. The reaction was stirred at 130 °C for 16 hrs. The reaction was cooled and quenched with ice-water (1000 mL). The collected solid was washed with water (100 mL × 3) and concentrated to give compound 70a (12 g) as a white solid. LCMS (M+H)+: 198.![Synthesis of 7-BROMO-1H-PYRAZOLO[4,3-C]PYRIDINE](/NewsImg/2026-08-24/6392317414461233225356131.png "Synthesis of 7-BROMO-1H-PYRAZOLO[4,3-C]PYRIDINE")
7-Bromo-1H-pyrazolo[4,3-c]pyridine Preparation Products And Raw materials
Raw materials
Preparation Products
7-Bromo-1H-pyrazolo[4,3-c]pyridine Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Wuxi Renyi New Materials Technology Co., Ltd | 13306222239 | wangmeili@renyiam.com | China | 558 | 58 |
| Yangzhou Haihao Biotechnology Co.,Ltd | 0514-15895751441 15895751441 | 3940147892@qq.com | China | 3374 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Beijing Ouhe Technology Co., Ltd | 13552068683 13522913783 | 2355560935@qq.com | China | 11777 | 60 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 400-6206333 13167063860 | anhua.mao@aladdin-e.com | China | 29985 | 65 |
| Shanghai Jiyi Biological Technology Co., LTD | 021-54135696 18516235431 | shgegenetech@163.com | China | 469 | 55 |
| Hebei Summedchem Co.,Ltd | 0319-5801333-8008 15630992918 | sales@summedchem.com | China | 1000 | 58 |
| Bide Pharmatech Ltd. | 400-164-7117 18317119277 | product02@bidepharm.com | China | 40000 | 60 |
| Bellen Chemistry Co., Ltd. | 010-60400365-8001 15910885229 | service@bellenchem.com | China | 4514 | 60 |
| Shanghai Sainty Biotechnology Co., Ltd. | 021-58957915 17721108391 | 907522080@qq.com | China | 997 | 55 |
