2,7-Dibromo-9,9'-spirobifluorene

Modify Date: 2025-08-20 18:29:29

2,7-Dibromo-9,9'-spirobifluorene Structure
2,7-Dibromo-9,9'-spirobifluorene structure
Common Name 2,7-Dibromo-9,9'-spirobifluorene
CAS Number 171408-84-7 Molecular Weight 474.187
Density 1.7±0.1 g/cm3 Boiling Point 557.4±50.0 °C at 760 mmHg
Molecular Formula C25H14Br2 Melting Point N/A
MSDS USA Flash Point 335.1±29.4 °C

 Names

Name 2,7-Dibromo-9,9-Spiro-Bifluorene
Synonym More Synonyms

 Chemical & Physical Properties

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

 Safety Information

Hazard Codes Xn
RIDADR NONH for all modes of transport
HS Code 2903999090

 Synthetic Route

 Customs

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%

 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
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