Description
5-Bromo-1,2,3-trichlorobenzene (CAS No. 21928-51-8) is a high-purity halogenated aromatic compound with the molecular formula C6H2BrCl3. This specialty chemical is widely utilized in organic synthesis, pharmaceutical research, and material science due to its unique reactivity as a polyhalogenated benzene derivative. Our product is rigorously tested to ensure ≥98% purity (GC) and is supplied as a crystalline solid with excellent batch-to-batch consistency. Ideal for Suzuki coupling reactions, nucleophilic aromatic substitutions, and as a building block for advanced materials. Packaged under inert gas in amber glass vials with secure closures to ensure stability and longevity. SDS and analytical certificates available upon request.
Properties
- CAS Number: 21928-51-8
- Complexity: 108
- IUPAC Name: 5-bromo-1,2,3-trichloro-benzene
- InChI: InChI=1S/C6H2BrCl3/c7-3-1-4(8)6(10)5(9)2-3/h1-2H
- InChI Key: VZUMVBQMJFFYRM-UHFFFAOYSA-N
- Exact Mass: 257.84055
- Molecular Formula: C6H2BrCl3
- Molecular Weight: 260.3
- SMILES: C1=C(C=C(C(=C1Cl)Cl)Cl)Br
- Monoisotopic Mass: 257.84055
- Synonyms: 5-bromo-1,2,3-trichlorobenzene, 21928-51-8, DTXSID00399582, DTXCID80350439, 661-193-0, 3,4,5-TRICHLOROBROMOBENZENE, Benzene, 5-bromo-1,2,3-trichloro-, 1-BROMO-3,4,5-TRICHLORO-BENZENE, MFCD00155009, 3,4,5-Trichlorobromobenzene; Bromo-3,4,5-trichlorobenzene;, SCHEMBL10872330, VZUMVBQMJFFYRM-UHFFFAOYSA-N, BCP05914, CL8617, AKOS005258974, CS-W008419, DS-0848, AC-23654, SY014524, DB-011404, EN300-204382, A1-00435
Application
5-Bromo-1,2,3-trichlorobenzene serves as a versatile intermediate in pharmaceutical synthesis, particularly for creating polyhalogenated drug scaffolds. In material science, it’s employed to synthesize liquid crystals and flame-retardant additives. The compound’s multiple reactive sites make it valuable for constructing complex aromatic systems through sequential cross-coupling reactions.
Safety and Hazards
GHS Hazard Statements
- H413 (97.4%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard]
Precautionary Statements
- P273, and P501
Hazard Classes and Categories
- Aquatic Chronic 4 (97.4%)
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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.


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