4-Bromo-1-methyl-1H-pyrazole-5-carbaldehyde
- CAS No.
- 473528-88-0
- Chemical Name:
- 4-Bromo-1-methyl-1H-pyrazole-5-carbaldehyde
- Synonyms
- AKOS B007395;ART-CHEM-BB B007395;4-Bromo-1-methylpyrazole-5-carbaldehyd;4-Bromo-2-methylpyrazole-3-carbaldehyde;4-Bromo-1-methylpyrazole-5-carbaldehyde;4-BROMO-1-METHYLPYRAZOLE-5-CARBOXALDEHYDE;4-Bromo-1-methyl-1H-pyrazol-5-carbaldehyde;4-Bromo-1-methyl-1H-pyrazole-5-carbaldehyde;4-BROMO-2-METHYL-2 H-PYRAZOLE-3-CARBALDEHYDE;4-Bromo-1-methyl-1H-pyrazole-5-carboxaldehyde
- CBNumber:
- CB0730198
- Molecular Formula:
- C5H5BrN2O
- Molecular Weight:
- 189.01
- MDL Number:
- MFCD03074341
- MOL File:
- 473528-88-0.mol
- MSDS File:
- SDS
| Melting point | 102-103°C |
|---|---|
| Boiling point | 275.2±20.0 °C(Predicted) |
| Density | 1.73±0.1 g/cm3(Predicted) |
| storage temp. | under inert gas (nitrogen or Argon) at 2-8°C |
| pka | -1.48±0.10(Predicted) |
| Sensitive | Air Sensitive |
| CAS DataBase Reference | 473528-88-0 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36/37/39 | |||||||||
| HS Code | 2933119000 | |||||||||
| NFPA 704 |
|
4-Bromo-1-methyl-1H-pyrazole-5-carbaldehyde price More Price(53)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Apolloscientific | OR110196 | 4-Bromo-1-methyl-1H-pyrazole-5-carboxaldehyde 98% | 473528-88-0 | 1g | $39 | 2026-06-04 | Buy |
| Apolloscientific | OR110196 | 4-Bromo-1-methyl-1H-pyrazole-5-carboxaldehyde 98% | 473528-88-0 | 5g | $108 | 2026-06-04 | Buy |
| Apolloscientific | OR110196 | 4-Bromo-1-methyl-1H-pyrazole-5-carboxaldehyde 98% | 473528-88-0 | 25g | $505 | 2026-06-04 | Buy |
| Apolloscientific | OR110196 | 4-Bromo-1-methyl-1H-pyrazole-5-carboxaldehyde 98% | 473528-88-0 | 100g | $1816 | 2026-06-04 | Buy |
| Activate Scientific | AS143793 | 4-Bromo-1-methyl-1H-pyrazole-5-carbaldehyde 98% | 473528-88-0 | 1g | $35 | 2026-06-04 | Buy |
4-Bromo-1-methyl-1H-pyrazole-5-carbaldehyde Chemical Properties, Uses, Production
Synthesis
27258-33-9
473528-88-0
General procedure for the synthesis of 1-methylpyrazole-5-carboxaldehyde using 1-methyl-1H-pyrazole-5-carboxaldehyde as starting material: a solution of N,N-dimethylformamide (DMF, 5 mL) of N-bromosuccinimide (NBS, 1.62 g, 9.09 mmol) was slowly added dropwise to a solution of 1-methyl-1H-pyrazole-5-carboxaldehyde (1.0 g, 9.09 mmol) solution in DMF (8 mL). The reaction mixture was stirred at room temperature overnight. Subsequently, 1N sodium hydroxide solution (9.1 mL) was added and stirring was continued for 10 min. The reaction solution was diluted with water (100 mL) and extracted with ethyl acetate (EtOAc, 30 mL x 3). The organic phases were combined, dried with anhydrous magnesium sulfate (MgSO4), filtered and concentrated to give an orange solid product (1.57 g, 92% yield). Liquid phase mass spectrometry (LRMS) detection showed m/z (M+H) of 187.9 and the measured value was 188.0.
References
[1] Patent: WO2014/81619, 2014, A1. Location in patent: Page/Page column 47
[2] Chemistry - A European Journal, 2018, vol. 24, # 38, p. 9530 - 9534
4-Bromo-1-methyl-1H-pyrazole-5-carbaldehyde Preparation Products And Raw materials
Raw materials
Preparation Products
4-Bromo-1-methyl-1H-pyrazole-5-carbaldehyde Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| Pure Chemistry Scientific Inc. | 001-857-928-2050 or 1-888-588-9418 | sales@chemreagents.com | United States | 10174 | 62 |
| Thermo Fisher Scientific | 800-810-5118 | cnchemical@thermofisher.com | China | 17752 | 75 |
| Shanghai Topbiochem Technology Co., Ltd | 021-58170097 | info@topbiochem.com | China | 9513 | 58 |
| 9ding chemical ( Shanghai) Limited | 4009209199 | sales@9dingchem.com | China | 22497 | 55 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 400-6206333 13167063860 | anhua.mao@aladdin-e.com | China | 29985 | 65 |
| 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 |
| Shanghai ShiXian Chemical Technology Co., Ltd. | 13764359345 | 990877971@qq.com | China | 1918 | 50 |
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