Butylbenzene
Butylbenzene (CAS: 104-51-8), with the molecular formula C <0xE2><0x82><0x86> H <0xE2><0x82><0x81><0xE2><0x82><0x83>(CH <0xE2><0x82><0x82> ) <0xE2><0x82><0x83>CH <0xE2><0x82><0x83>, is a clear, colourless liquid belonging to the arenes chemical class. This organic compound serves as a valuable intermediate and building block in chemical synthesis. Its applications span various research and industrial sectors, contributing to the development of complex organic molecules.
- IUPAC
- 1-Phenylbutane
- Synonyms
- 1-Phenylbutane

Organic Synthesis Intermediate
Butylbenzene functions as a key intermediate in the synthesis of more complex organic compounds. Its phenyl ring and alkyl chain offer versatile reaction sites for various chemical transformations.
Research and Development
It is utilised in research laboratories for exploring new synthetic routes and developing novel chemical entities. Its properties make it suitable for investigating various chemical reactions and processes.
Specialty Chemical Production
Butylbenzene finds application in the production of specialty chemicals, where its unique structure can be incorporated into target molecules for specific functionalities.
| Molecular weight | 134.22 |
|---|---|
| Linear formula | C6H5(CH2)3CH3 |
| Assay | ≥98.0% (GC) |
| Boiling point | 183 °C(lit.) |
| Density | 0.86 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.489(lit.)n20/D 1.490 |
| Solubility | alcohol: misciblebenzene: misciblediethyl ether: misciblewater: insoluble |
| Melting point | −88 °C(lit.) |
| Vapour pressure | 1.03 mmHg (23 °C) |
| Vapour density | >1 (vs air) |
| Autoignition temp | 774 °F |


Hazard statements
- H226Flammable liquid and vapour
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P501Dispose of contents and container per local regulations
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 59 °C / 138.2 °F |
| Transport (UN / ADR) | UN 2709 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | N |
| Risk statements (R) | 10-50/53 |
| Safety statements (S) | 16-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 5.8 % |
|---|---|
| Gene Information | human ... CYP1A2(1544) |
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 Butylbenzene used for?
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Butylbenzene is primarily used as an intermediate and building block in organic synthesis and in research and development laboratories for exploring new chemical entities and synthetic pathways.
What are the CAS number and formula for Butylbenzene?
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The CAS number for Butylbenzene is 104-51-8, and its molecular formula is C <0xE2><0x82><0x86> H <0xE2><0x82><0x81><0xE2><0x82><0x83>(CH <0xE2><0x82><0x82> ) <0xE2><0x82><0x83>CH <0xE2><0x82><0x83>.
What grade and purity does Tech Serve Solutions supply for Butylbenzene?
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Tech Serve Solutions supplies Butylbenzene with an assay of <0xE2><0x89><0xA5>98.0% (GC). We do not represent this product as USP, BP, or EP grade.
How should Butylbenzene be handled safely?
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Butylbenzene is a flammable liquid and vapour (H226) and is very toxic to aquatic life with long lasting effects (H410). Handle in a well-ventilated area, away from ignition sources, and use appropriate personal protective equipment including eyeshields, gloves, and suitable respiratory protection.
Is Butylbenzene a controlled substance?
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The provided data does not indicate that Butylbenzene is a controlled substance.
How is Butylbenzene packed and shipped?
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Butylbenzene is shipped according to safety regulations, identified as UN 2709, Class 3, Packing Group III. Specific packing details are available upon request.
How can I request a quote or sample of Butylbenzene?
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To request a quote or sample of Butylbenzene, please contact our sales team through the website or via phone.
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