Dibromobenzenes are a group of bromobenzenes with the formula C6H4Br2, consisting of two bromine atoms bonded to a central benzene ring.
There are three isomers of dibromobenzene:
| Dibromobenzene isomers | ||||
|---|---|---|---|---|
| Common name and systematic name | 1,2-Dibromobenzene | 1,3-Dibromobenzene[1] | 1,4-Dibromobenzene[2][3][4] | |
| Structure | 
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| Molecular formula | C6H4Br2 | |||
| Molar mass | 235.906 g/mol | |||
| Appearance | colorless liquid | colorless liquid | white solid | |
| CAS number | [583-53-9] | [108-36-1] | [106-37-6] | |
| Properties | ||||
| Density and phase | 1.9940 g/ml, liquid | 1.9523 g/ml, liquid | 1.84 g/ml, solid | |
| Solubility in water | practically insoluble | |||
| Other solubilities | Soluble in 70 parts ethanol. Soluble in benzene, chloroform and very soluble in diethyl ether. | |||
| Melting point | 7.1 °C | −7.0 °C | 87 °C | |
| Boiling point | 225 °C | 218–220 °C | 220.4 °C | |
- ^ "1,3-Dibromobenzene". PubChem.
- ^ "Safety data for 1,4-dibromobenzene". Archived from the original on 28 January 2010. Retrieved 23 November 2011.
- ^ "1,4-Dibromobenzene LS026". Archived from the original on 2011-07-11. Retrieved 23 November 2011.
- ^ Merck Index (14th ed.). Whitehouse Station, NJ: Merck & Co Inc. 2006. p. 3024.