AKOS B019512
- CAS No.
- 5775-82-6
- Chemical Name:
- AKOS B019512
- Synonyms
- 4-Bromo-1,3-dimethyl-1H-pyrazole;AKOS B019512;ART-CHEM-BB B019512;TIMTEC-BB SBB005613;1,3-Dimethyl-4-brom-pyrazol;4-Bromo-1,3-dimethylpyrazole;1H-Pyrazole, 4-bromo-1,3-dimethyl-;4-bromo-1,3-dimethyl-1H-pyrazole(SALTDATA: FREE)
- CBNumber:
- CB7287101
- Molecular Formula:
- C5H7BrN2
- Molecular Weight:
- 175.03
- MDL Number:
- MFCD00985488
- MOL File:
- Mol file
- MSDS File:
- SDS
| Boiling point | 100 °C(Press: 30 Torr) |
|---|---|
| Density | 1.487 g/mL at 25 °C |
| refractive index | 1.5214 (estimate) |
| Flash point | 103 °C |
| storage temp. | 2-8°C |
| form | liquid |
| pka | 0.68±0.10(Predicted) |
| Appearance | Colorless to light yellow Liquid |
| InChI | InChI=1S/C5H7BrN2/c1-4-5(6)3-8(2)7-4/h3H,1-2H3 |
| InChIKey | UESOBPUTZLYSGI-UHFFFAOYSA-N |
| SMILES | N1(C)C=C(Br)C(C)=N1 |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P301+P312-P302+P352-P304+P340-P305+P351+P338 |
| target organs | Respiratory system |
| Hazard Codes | Xi |
| Risk Statements | 37/38-41 |
| Safety Statements | 26-39 |
| WGK Germany | WGK 3 |
| HazardClass | IRRITANT |
| HS Code | 29331990 |
| Storage Class | 10 - Combustible liquids |
| Hazard Classifications | Eye Dam. 1 Skin Irrit. 2 STOT SE 3 |
AKOS B019512 price More Price(57)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Activate Scientific | AS27807 | 4-Bromo-1,3-dimethylpyrazole 97% | 5775-82-6 | 1g | $22 | 2026-06-04 | Buy |
| Activate Scientific | AS27807 | 4-Bromo-1,3-dimethylpyrazole 97% | 5775-82-6 | 5g | $33 | 2026-06-04 | Buy |
| Activate Scientific | AS27807 | 4-Bromo-1,3-dimethylpyrazole 97% | 5775-82-6 | 25g | $134 | 2026-06-04 | Buy |
| Activate Scientific | AS27807 | 4-Bromo-1,3-dimethylpyrazole 97% | 5775-82-6 | 100g | $531 | 2026-06-04 | Buy |
| Matrix Scientific | 030917 | 4-Bromo-1,3-dimethyl-1H-pyrazole | 5775-82-6 | 10.00g | $41 | 2026-05-18 | Buy |
AKOS B019512 Chemical Properties, Uses, Production
Chemical Properties
White solid
Synthesis
694-48-4
5775-82-6
General procedure for the synthesis of 4-bromo-1,3-dimethyl-1H-pyrazole from 1,3-dimethyl-1H-pyrazole: Bromine (2.0 mL, 40.80 mmol) was added slowly and dropwise to a solution of 1,3-dimethyl-1H-pyrazole (3.92 g, 40.80 mmol) in acetic acid (10 mL) at room temperature. The reaction mixture was heated to 70 °C and maintained for 1 hour. Upon completion of the reaction, it was cooled to room temperature and concentrated under vacuum to give the crude product. The pH of the crude product was adjusted with saturated sodium carbonate solution to 7~8. Subsequently, extraction was carried out with ethyl acetate (50 mL x 3), the organic phases were combined and dried over anhydrous sodium sulfate. After filtration, the filtrate was concentrated under vacuum to give the residue. The residue was purified by column chromatography (eluent: ethyl acetate/petroleum ether = 1/6 to 1/4) to afford the target compound 4-bromo-1,3-dimethyl-1H-pyrazole (3.30 g, yield: 46%) as an oil. The product was detected by ESI-MS and showed (M + H)+ peak located at 175.1. 1H NMR (400 MHz, CDCl3) data were as follows: δ 7.30 (s, 1H), 3.83 (s, 3H), 2.23 (s, 3H).
References
[1] J. Gen. Chem. USSR (Engl. Transl.), 1980, vol. 50, # 9, p. 1714 - 1716
[2] Zhurnal Obshchei Khimii, 1980, vol. 50, # 9, p. 2116 - 2119
[3] Patent: WO2015/89327, 2015, A1. Location in patent: Paragraph 0296
[4] Chemische Berichte, 1926, vol. 59, p. 606,1296
AKOS B019512 Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Accela ChemBio Co.,Ltd. | 021-50795510 4000665055 | marketing@accelachem.com | China | 9992 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Adamas Reagent, Ltd. | 400-6009262 15618770481 | yhx@titansci.com | China | 14098 | 59 |
| T&W GROUP | 021-61551611 13296011611 | contact@trustwe.com | China | 9884 | 58 |
| Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. | 025-66113011 13913916777 | cfzhang@aikonchem.com | China | 19902 | 55 |
| 9ding chemical ( Shanghai) Limited | 4009209199 | sales@9dingchem.com | China | 18201 | 56 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 400-6206333 13167063860 | anhua.mao@aladdin-e.com | China | 29985 | 65 |
| SynAsst Chemical. | 021-60343070 | China | 12731 | 55 | |
| Bide Pharmatech Ltd. | 400-164-7117 18317119277 | product02@bidepharm.com | China | 40000 | 60 |
