4-Propylphenol
4-Propylphenol (CAS 645-56-7), with the molecular formula C9H12O and a molecular weight of 136.19 g/mol, is a phenolic compound. It serves as a valuable building block in organic synthesis. Its utility spans chemical synthesis, particularly in the creation of more complex molecules. This compound is supplied by TSS with an assay of 99%.
- IUPAC
- p-Propylphenol

Organic Synthesis Intermediate
4-Propylphenol is utilised as a key intermediate in the synthesis of various organic compounds. It can be incorporated into multi-step reaction sequences for the production of fine chemicals and research materials.
Building Block for Specialty Chemicals
This phenol derivative acts as a foundational component in the development of specialty chemicals. Its structure allows for further functionalisation, leading to diverse chemical entities.
Research and Development
In R&D settings, 4-Propylphenol is employed for exploratory synthesis and the investigation of phenolic compound reactivity. It is a useful reagent for academic and industrial research laboratories.
| Molecular weight | 136.19 |
|---|---|
| Linear formula | CH3CH2CH2C6H4OH |
| Assay | 99% |
| Boiling point | 232 °C(lit.) |
| Density | 0.983 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.523(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 | 106 °C / 222.8 °F |
| Transport (UN / ADR) | UN 3145 8 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-28-36/37/39-45 |
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-Propylphenol primarily used for?
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4-Propylphenol is primarily used as a building block and intermediate in organic synthesis and for research and development purposes.
What are the CAS number and chemical formula for 4-Propylphenol?
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The CAS number for 4-Propylphenol is 645-56-7, and its linear chemical formula is CH3CH2CH2C6H4OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Propylphenol with a purity of 99%. This product is suitable for technical and research applications; TSS does not represent it as USP, BP, or EP grade.
What are the main safety hazards associated with 4-Propylphenol?
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4-Propylphenol is classified with warning signal word and has hazard statements 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 suitable respiratory protection, should be used when handling this chemical.
How is 4-Propylphenol typically packed and exported?
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4-Propylphenol is carefully packed according to international shipping regulations for chemicals and is available for export globally by Tech Serve Solutions.
How can I request a sample or quote for 4-Propylphenol?
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To request a sample or a quote for 4-Propylphenol, please contact our sales team through the website or by phone.
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