- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: 1-Bromobenzocyclobutene
- Price: Check
- Purity: 98.0%
- Stocking Period: 10 Day
- Contact: Yang
- Email: sales@echemcloud.com
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: 1-Bromobenzocyclobutene
- Price: ￥428.0/250mg ￥1718.0/1g
- Purity: 95.0%
- Stocking Period: Inquiry
- Contact: Liu jia
- Email: 2130147988@qq.com
21120-91-2
21120-91-2 structure
- Name: 1-Bromobenzocyclobutene
- Chemical Name: 7-bromobicyclo[4.2.0]octa-1,3,5-triene
- CAS Number: 21120-91-2
- Molecular Formula: C8H5Br
- Molecular Weight: 181.02900
- Catalog: Organic raw materials Hydrocarbon compounds and their derivatives Cyclic hydrocarbon
- Create Date: 2018-08-10 16:04:30
- Modify Date: 2025-08-26 18:05:00
| Name | 7-bromobicyclo[4.2.0]octa-1,3,5-triene |
|---|---|
| Synonyms |
Benzocyclobutenyl bromide
1-bromo-1,2-dihydro-cyclobutabenzene AC-154 1-Bromobenzocyclobutene MFCD00799491 1-bromocyclobutabenzene Bicyclo[4.2.0]octa-1,3,5-triene,7-bromo 1-bromo-1,2-dihydrobenzocyclobutene 1-bromobenzocyclobutane |
| Density | 1.45 g/mL at 25ºC(lit.) |
|---|---|
| Boiling Point | 90ºC10.5 mm Hg(lit.) |
| Molecular Formula | C8H5Br |
| Molecular Weight | 181.02900 |
| Flash Point | 205 °F |
| Exact Mass | 179.95700 |
| LogP | 2.89300 |
| Vapour Pressure | 0.168mmHg at 25°C |
| Index of Refraction | n20/D 1.59(lit.) |
| Personal Protective Equipment | Eyeshields;Gloves |
|---|---|
| Hazard Codes | Xi |
| RIDADR | NONH for all modes of transport |
| WGK Germany | 3 |
| HS Code | 2903890090 |
|
~6%
21120-91-2 |
| Literature: VANDERBILT UNIVERSITY Patent: WO2008/24435 A2, 2008 ; Location in patent: Page/Page column 104 ; |
|
~%
21120-91-2 |
| Literature: Chemische Berichte, , vol. 91, p. 430,436 Journal of the American Chemical Society, , vol. 80, p. 2255 |
|
~25%
21120-91-2 |
| Literature: DeCamp, Mark R.; Viscogliosi, Lori A. Journal of Organic Chemistry, 1981 , vol. 46, # 19 p. 3918 - 3920 |
|
~%
21120-91-2 |
| Literature: Journal of the American Chemical Society, , vol. 80, p. 2255 |
|
~40%
21120-91-2 |
| Literature: Barton, John W.; Shepherd, Michael K. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1987 , p. 1561 - 1566 |
|
~%
21120-91-2 |
| Literature: Australian Journal of Chemistry, , vol. 29, p. 1685 - 1697 |
|
~%
21120-91-2 |
| Literature: Australian Journal of Chemistry, , vol. 29, p. 1685 - 1697 |
|
~%
21120-91-2 |
| Literature: Australian Journal of Chemistry, , vol. 29, p. 1685 - 1697 |
| Precursor 8 | |
|---|---|
| DownStream 7 | |
![Bicyclo[4.2.0]octa-1,3,5-triene-7-carbonitrile structure](https://image.chemsrc.com/caspic/159/6809-91-2.png)
![Bicyclo[4.2.0]octa-1,3,5-trien-7-one structure](https://image.chemsrc.com/caspic/187/3469-06-5.png)
![7-iodobicyclo[4.2.0]octa-1,3,5-triene structure](https://image.chemsrc.com/caspic/312/78329-06-3.png)
![7-(4-methylphenyl)bicyclo[4.2.0]octa-1,3,5-triene structure](https://image.chemsrc.com/caspic/061/661476-70-6.png)
![bicyclo[4.2.0]octa-1,3,5-trien-7-amine structure](https://image.chemsrc.com/caspic/090/61599-85-7.png)
| HS Code | 2903890090 |
|---|---|
| Summary | 2903890090. halogenated derivatives of cyclanic, cyclenic or cyclotherpenic hydrocarbons. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |