1-Bromo-4-butylbenzene
1-Bromo-4-butylbenzene (CAS: 41492-05-1) is an organic compound with the formula CH3(CH2)3C6H4Br. This halogenated hydrocarbon serves as a valuable building block in organic synthesis. With a molecular weight of 213.11 g/mol, it is frequently employed in the development of more complex molecules and intermediates for various chemical research and industrial applications. Its structure features a butyl chain attached to a brominated benzene ring.

Organic Synthesis Intermediate
1-Bromo-4-butylbenzene is widely used as a versatile intermediate in the synthesis of pharmaceuticals, agrochemicals, and advanced materials. Its reactive bromine atom allows for diverse coupling reactions, facilitating the construction of complex organic structures.
Building Block for Fine Chemicals
This compound functions as a key building block in the production of various fine chemicals. It is instrumental in introducing the 4-butylphenyl moiety into target molecules through established synthetic methodologies.
Research and Development
In R&D settings, 1-Bromo-4-butylbenzene is utilised for exploring novel chemical pathways and developing new compounds. Its availability and well-defined reactivity make it a reliable reagent for academic and industrial research.
| Molecular weight | 213.11 |
|---|---|
| Linear formula | CH3(CH2)3C6H4Br |
| Assay | 97% |
| Density | 1.208 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.53(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 108 °C / 226.4 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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 1-Bromo-4-butylbenzene used for?
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1-Bromo-4-butylbenzene is primarily used as a building block and intermediate in organic synthesis for the development of pharmaceuticals, agrochemicals, fine chemicals, and advanced materials.
What is the CAS number and chemical formula for 1-Bromo-4-butylbenzene?
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The CAS number for 1-Bromo-4-butylbenzene is 41492-05-1, and its chemical formula is CH3(CH2)3C6H4Br.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Bromo-4-butylbenzene with a purity of 97%. This product is suitable for research and general chemical synthesis purposes. TSS does not represent this product as meeting USP, BP, EP, or other pharmacopoeia standards.
What are the primary safety concerns when handling 1-Bromo-4-butylbenzene?
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1-Bromo-4-butylbenzene is classified with a Warning signal word, presenting hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Appropriate personal protective equipment, including eyeshields and gloves, should be worn, and handling should occur in a well-ventilated area or fume hood.
How is 1-Bromo-4-butylbenzene packed, shipped, and exported?
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1-Bromo-4-butylbenzene is carefully packed according to international shipping regulations for hazardous materials. Tech Serve Solutions has extensive experience in exporting chemicals globally, ensuring compliant and efficient delivery.
How can I request a quote or sample of 1-Bromo-4-butylbenzene?
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To request a quote or a sample of 1-Bromo-4-butylbenzene, please contact our sales department through the website or by phone, providing your specific requirements and shipping details.
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