4,7-Dibromo-2,1,3-benzoxadiazole
- CAS No.
- 54286-63-4
- Chemical Name:
- 4,7-Dibromo-2,1,3-benzoxadiazole
- Synonyms
- 4,7-dibroMobenzo[c][1,2,5]oxadiazole;BO-2Br;2,1,3-Benzoxadiazole,4,7-dib;4,7-Dibromo-2,1,3-benzoxadiazole;2,1,3-Benzoxadiazole,4,7-dibroMo-;2,1,3-Benzoxadiazole,4,7-dibromo-benzofurazan;4,7-DibroMo-benzofurazan 4,7-DibroMo-benzofurazan;4,7-Dibromo-benzofurazan 4,7-Dibromo-benzofurazan ,99%
- CBNumber:
- CB62520997
- Molecular Formula:
- C6H2Br2N2O
- Molecular Weight:
- 277.9
- MDL Number:
- MFCD02114623
- MOL File:
- 54286-63-4.mol
- MSDS File:
- SDS
| Melting point | 113 °C |
|---|---|
| Boiling point | 312.4±45.0 °C(Predicted) |
| Density | 2.220±0.06 g/cm3(Predicted) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | soluble in Toluene |
| pka | -4.27±0.50(Predicted) |
| form | powder to crystal |
| color | White to Yellow to Orange |
| InChI | InChI=1S/C6H2Br2N2O/c7-3-1-2-4(8)6-5(3)9-11-10-6/h1-2H |
| InChIKey | ZUGAIWASFADONS-UHFFFAOYSA-N |
| SMILES | N1=C2C(Br)=CC=C(Br)C2=NO1 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| HS Code | 2934.99.4400 |
4,7-Dibromo-2,1,3-benzoxadiazole price More Price(58)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | D4614 | 4,7-Dibromo-2,1,3-benzoxadiazole | 54286-63-4 | 200MG | $97 | 2026-04-30 | Buy |
| TCI Chemical | D4614 | 4,7-Dibromo-2,1,3-benzoxadiazole | 54286-63-4 | 1G | $289 | 2026-04-30 | Buy |
| Activate Scientific | AS46689 | 4,7-Dibromobenzo[c][1,2,5]oxadiazole 97% | 54286-63-4 | 1g | $85 | 2026-06-04 | Buy |
| Activate Scientific | AS46689 | 4,7-Dibromobenzo[c][1,2,5]oxadiazole 97% | 54286-63-4 | 5g | $420 | 2026-06-04 | Buy |
| Activate Scientific | AS46689 | 4,7-Dibromobenzo[c][1,2,5]oxadiazole 97% | 54286-63-4 | 25g | $1649 | 2026-06-04 | Buy |
4,7-Dibromo-2,1,3-benzoxadiazole Chemical Properties, Uses, Production
Synthesis
273-09-6
54286-63-4
Benzo[c][1,2,5]oxadiazole (2.5 g, 21 mmol) was added as raw material, iron powder (0.23 g, 4.2 mmol) was added and heated to 90°C to melt. Subsequently, bromine (3.2 ml, 62 mmol) was slowly added dropwise to the molten liquid and the reaction mixture was refluxed for 2 hours. Upon completion of the reaction, the resulting solution was poured into ice water and a precipitate was precipitated and collected by filtration. The precipitate was mixed with aqueous NaHCO3 solution, stirred for 15 min and filtered again. Purification by fast chromatography (hexane/EtOAc 9:1) afforded 4,7-dibromobenzofurazan as an orange solid (1.5 g, 25% yield). The product was characterized as follows: melting point 88-92 °C; IR spectra (thin film method, cm-1 ) 1514, 1344, 1201, 1026, 954, 871, 841; 1H NMR (500MHz, CDCl3) δ 7.51 (2H, s, Ar-H); 13C NMR (126MHz, CDCl3) δ 149.6 (C=N), 134.4 (C=N), 134.4 (C=N), 134.4 (C=N). ), 134.4 (Ar-C), 108.9 (ipso-Ar-C); mass spectra (EI) m/z 280 ([81Br,81Br] M+, 6%), 278 ([81Br,79Br] M+, 8%), 276 ([79Br,79Br] M+, 6%), 250 (5%), 248 (10%), 246 (7%) , 197 (5%). All data are in agreement with literature reports.
References
[1] Journal of Materials Chemistry C, 2015, vol. 3, # 5, p. 973 - 976
[2] New Journal of Chemistry, 2012, vol. 36, # 3, p. 550 - 553
[3] Journal of the American Chemical Society, 2008, vol. 130, # 2, p. 732 - 742
[4] Journal of Materials Chemistry C, 2015, vol. 3, # 35, p. 9145 - 9153
[5] Patent: WO2009/34396, 2009, A2. Location in patent: Page/Page column 91-92
4,7-Dibromo-2,1,3-benzoxadiazole Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shenzhen Ruixun Optoelectronic Material Technology Co., Ltd | 0755-26718755; 15889762949 | 250973543@qq.com | China | 3590 | 58 |
| Zhengzhou Alpha Chemical Co. LTD | 0371-53732842 13383863444 | 3838551451@qq.com | China | 9996 | 58 |
| Xi'an duokai Trading Co., Ltd | 029-82283472 15091869467 | 1055507341@qq.com | China | 298 | 58 |
| Zhengyang Pharmaceutical Research and Development (Hangzhou) Co., Ltd | 13995958448; 13995958448 | 13995958448@139.com | China | 1424 | 58 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Hunan Hui Bai Shi Biotechnology Co., Ltd. | 0731-85526065 13308475853 | ivy@hnhbsj.com | China | 7236 | 62 |
| Nanjing Norris-Pharm Technology Co., Ltd | 13901585132 | sales@norris-pharm.com | China | 8869 | 55 |
| China Kouting Group Limited | +86 (21) 5811-6473 5811-6475 | sales@koutingchina.com | China | 494 | 60 |
| TOKYO CHEMICAL INDUSTRY CO., LTD. | 03-36680489 | Sales-JP@TCIchemicals.com | Japan | 28364 | 80 |
View Latest Price from 4,7-Dibromo-2,1,3-benzoxadiazole manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2020-01-09 | 4,7-Dibromo-benzofurazan 4,7-Dibromo-benzofurazan ,99%
54286-63-4
|
$9.80 | 1g | ≥99% | 100kg | Career Henan Chemical Co |
-
- 4,7-Dibromo-benzofurazan 4,7-Dibromo-benzofurazan ,99%
54286-63-4
- $9.80
- ≥99%
- Career Henan Chemical Co
