4-Bromo-3-iodotoluene
4-Bromo-3-iodotoluene (CAS: 858841-53-9), with the molecular formula BrC6H3(I)CH3 and a molecular weight of 296.93 g/mol, is a halogenated aromatic compound. It serves as a valuable building block in organic synthesis, particularly in the development of novel chemical entities and pharmaceutical intermediates. Its specific substitution pattern offers unique reactivity for further functionalization in complex molecular architectures.

Organic Synthesis Intermediate
This compound acts as a versatile intermediate in multi-step organic syntheses. The distinct positioning of bromine and iodine atoms allows for selective cross-coupling reactions and other transformations critical for building complex molecular structures.
Pharmaceutical Research and Development
As a halogenated aryl building block, 4-Bromo-3-iodotoluene is utilised in the R&D of new pharmaceutical agents. Its structure can be incorporated into lead compounds to explore structure-activity relationships.
Material Science Applications
The unique electronic properties conferred by the halogen substituents may lend this compound to research in novel materials, potentially for applications in organic electronics or specialised polymers.
| Molecular weight | 296.93 |
|---|---|
| Linear formula | BrC6H3(I)CH3 |
| Assay | 97% |
| Density | 2.084 g/mL at 25 °C |
| Refractive index | n20/D 1.646 |

Hazard statements
- H301Toxic if swallowed
- H413May cause long-lasting harmful effects to aquatic life
Precautionary statements
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | >110 °C / >230 °F |
| Transport (UN / ADR) | UN 2810 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25 |
| Safety statements (S) | 45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4-Bromo-3-iodotoluene used for?
+
4-Bromo-3-iodotoluene is primarily used as an intermediate in organic synthesis, particularly for the development of pharmaceutical agents and potentially in material science research.
What are the CAS number and chemical formula for 4-Bromo-3-iodotoluene?
+
The CAS number is 858841-53-9 and the chemical formula is BrC6H3(I)CH3.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 4-Bromo-3-iodotoluene with a purity of 97%. This product is typically supplied for research and laboratory use; TSS does not represent it as USP, BP, or EP grade.
How should 4-Bromo-3-iodotoluene be handled safely?
+
4-Bromo-3-iodotoluene is classified as Danger with H301 (Toxic if swallowed) and H413 (May cause long lasting harmful effects to aquatic life). Handle with appropriate personal protective equipment including eyeshields, gloves, and a suitable respirator. Avoid release to the environment.
Is 4-Bromo-3-iodotoluene a controlled substance?
+
The provided data does not indicate that 4-Bromo-3-iodotoluene is a controlled substance.
How is 4-Bromo-3-iodotoluene packed, shipped, and exported?
+
Products are carefully packed in compliance with international shipping regulations. TSS is an experienced global exporter and can handle complex logistical requirements.
How can I request a quote or sample?
+
Please contact our sales team via the website or direct contact details to request a quote or inquire about sample availability for 4-Bromo-3-iodotoluene.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis