1,4-Dibromobenzene (p-dibromobenzene) is an aryl bromide and isomer of dibromobenzene that is solid at room temperature. It has a strong smell similar to that of the lighter chlorine analogue. It can be used as a precursor to the dye 6,6-dibromoindigo.[4]
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| Names | |
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| Preferred IUPAC name
1,4-Dibromobenzene | |
| Other names
p-Dibromobenzene
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| Identifiers | |
3D model (JSmol)
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| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.003.083 |
| EC Number |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C6H4Br2 | |
| Molar mass | 235.906 g·mol−1 |
| Appearance | White solid |
| Density | 1.84 g/cm3 [1] |
| Melting point | 87 °C (189 °F; 360 K)[3] |
| Boiling point | 220.4 °C (428.7 °F; 493.5 K)[3] |
| Practically insoluble[2] | |
| Solubility in other solvents | Soluble in 70 parts ethanol[2] Soluble in benzene, chloroform and very soluble in diethyl ether[2] |
| -101.4·10−6 cm3/mol | |
| Hazards | |
| GHS labelling: | |
 
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| Warning | |
| H315, H319, H335, H400, H411 | |
| P261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P391, P403+P233, P405, P501 | |
| Related compounds | |
Related compounds
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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See also
editReferences
edit- ^ "Safety data for 1,4-dibromobenzene". Archived from the original on 28 January 2010. Retrieved 23 November 2011.
- ^ a b c Merck Index (14th ed.). Whitehouse Station, NJ: Merck & Co Inc. 2006. p. 3024.
- ^ a b "1,4-Dibromobenzene LS026". Archived from the original on 2011-07-11. Retrieved 23 November 2011.
- ^ Wolk, Joel; Frimer, Aryeh (29 Nov 2020). "A Simple, Safe and Efficient Synthesis of Tyrian Purple (6,6-Dibromoindigo)". Molecules. 15 (8): 5561–5580. doi:10.3390/molecules15085561. PMC 6257764. PMID 20714313.
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