- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: 2,7-Dibromo-9,9'-spirobifluorene
- Price: Check
- Purity: 98.0%
- Stocking Period: 10 Day
- Contact: Yang
- Email: sales@echemcloud.com
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: 2,7-Dibromo-9,9'-spirobifluorene
- Price: ￥468.0/5g ￥148.0/1g
- Purity: 98.0%
- Stocking Period: 2 Day
- Contact: Liu jia
- Email: 2130147988@qq.com
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: 2,7-Dibromo-9,9'-spiro-bifluorene
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
- Email: enquiry@dycnchem.com
- Henan Tianfu Chemical Co., Ltd.
- China
- Product Name: 2,7-Dibromo-9,9'-spiro-bifluorene
- Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
- Purity: 99.0%
- Stocking Period: Inquiry
- Contact: Anson
- Email: info@tianfuchem.com
171408-84-7
171408-84-7 structure
- Name: 2,7-Dibromo-9,9'-spirobifluorene
- Chemical Name: 2,7-Dibromo-9,9-Spiro-Bifluorene
- CAS Number: 171408-84-7
- Molecular Formula: C25H14Br2
- Molecular Weight: 474.187
- Catalog: Pharmaceutical intermediate OLED material intermediate
- Create Date: 2018-07-17 19:30:51
- Modify Date: 2025-08-20 18:29:29
| Name | 2,7-Dibromo-9,9-Spiro-Bifluorene |
|---|---|
| Synonyms |
2,7-Dibromo-9,9'-spirobi[fluorene]
2,7-Dibromo-9,9'-spiro-bifluorene 2,7-DibroMo-9,9'-spirobi[9H-fluorene] 2',7'-dibromo-9,9'-spirobi[fluorene] 2,7-Dibromo-9,9'-spirobifluorene 2,7-Dibromo-9,9′-spirobifluorene 9,9'-Spirobi[9H-fluorene], 2,7-dibromo- 2′,7′-dibromo-9,9′-spirobifluorene 2,7-Dibromo-9,9-spiro-bifluorene |
| Density | 1.7±0.1 g/cm3 |
|---|---|
| Boiling Point | 557.4±50.0 °C at 760 mmHg |
| Molecular Formula | C25H14Br2 |
| Molecular Weight | 474.187 |
| Flash Point | 335.1±29.4 °C |
| Exact Mass | 471.946198 |
| LogP | 8.04 |
| Vapour Pressure | 0.0±1.5 mmHg at 25°C |
| Index of Refraction | 1.804 |
| Hazard Codes | Xn |
|---|---|
| RIDADR | NONH for all modes of transport |
| HS Code | 2903999090 |
| Precursor 10 | |
|---|---|
| DownStream 2 | |
![2-bromo-9,9'-spirobi[fluorene]-2',7'-dicarbonitrile structure](https://image.chemsrc.com/caspic/010/876173-76-1.png)
| HS Code | 2903999090 |
|---|---|
| Summary | 2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |