4-Butylbenzonitrile
4-Butylbenzonitrile (CAS: 20651-73-4, C10H13N) is a nitrile compound with a molecular weight of 159.23 g/mol. Characterised by its phenyl ring substituted with a butyl group and a nitrile functional group, this chemical serves as a valuable intermediate in organic synthesis. Its properties make it suitable for various chemical transformations and as a building block in the development of more complex molecules within research and industrial settings.

Organic Synthesis Intermediate
4-Butylbenzonitrile acts as a key building block in the synthesis of diverse organic compounds. The nitrile group can undergo various reactions, including hydrolysis to carboxylic acids or reduction to amines, enabling the construction of more complex molecular architectures.
Material Science Research
This compound may be utilised in the research and development of novel materials. Its structure, featuring an aromatic ring and an alkyl chain, offers potential for incorporation into polymers or liquid crystals, influencing material properties.
Pharmaceutical Intermediate Development
As a functionalised aromatic compound, 4-Butylbenzonitrile can serve as a precursor in the multi-step synthesis of pharmaceutical agents. Its specific structural features can be leveraged to introduce desired functionalities into drug candidates.
| Molecular weight | 159.23 |
|---|---|
| Linear formula | CH3(CH2)3C6H4CN |
| Assay | 98% |
| Boiling point | 132-133 °C/12 mmHg(lit.) |
| Density | 0.924 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.515(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 62 °C / 143.6 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-36 |
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-Butylbenzonitrile used for?
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4-Butylbenzonitrile is primarily used as a building block and intermediate in organic synthesis, particularly in the development of new materials and potential pharmaceutical agents.
What is the CAS number and chemical formula for 4-Butylbenzonitrile?
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The CAS number for 4-Butylbenzonitrile is 20651-73-4, and its linear chemical formula is CH3(CH2)3C6H4CN.
What grade and purity does Tech Serve Solutions supply for 4-Butylbenzonitrile?
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Tech Serve Solutions supplies 4-Butylbenzonitrile with a minimum assay of 98%. This product is typically supplied for research and laboratory use and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 4-Butylbenzonitrile be handled safely?
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4-Butylbenzonitrile is classified with warning signals and hazard statements including H302 (Harmful if swallowed), H312 (Harmful in contact with skin), H315 (Causes skin irritation), H319 (Causes serious eye irritation), H332 (Harmful if inhaled), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, is essential during handling. Refer to the safety data sheet for comprehensive guidance.
Does Tech Serve Solutions export 4-Butylbenzonitrile?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 4-Butylbenzonitrile, serving customers worldwide.
How can I request a quote or sample for 4-Butylbenzonitrile?
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To request a quote or sample of 4-Butylbenzonitrile, please contact our sales team through the website or by phone, providing your specific requirements.
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