4-Cyanophenol
4-Cyanophenol (CAS 767-00-0), with the molecular formula NCC6H4OH and a molecular weight of 119.12 g/mol, is a valuable organic compound. This white to off-white solid serves as a key intermediate in the synthesis of various complex molecules. Its structure, featuring both a hydroxyl and a nitrile group, allows for diverse chemical transformations, making it a sought-after building block in research and industrial applications.
- IUPAC
- 4-Hydroxybenzonitrile
- Synonyms
- 4-Hydroxybenzonitrile

Pharmaceutical Intermediate
4-Cyanophenol is utilised in the multi-step synthesis of active pharmaceutical ingredients (APIs). Its reactive functional groups enable its incorporation into complex molecular scaffolds required for drug development.
Agrochemical Synthesis
The compound serves as a precursor in the production of certain pesticides and herbicides. Its structure can be modified to create molecules with specific biological activities for crop protection.
Material Science Research
4-Cyanophenol finds application in the development of novel polymers and functional materials. Its phenolic and nitrile functionalities can be exploited in polymerization reactions or to impart specific properties to materials.
Organic Synthesis Building Block
As a versatile reagent, 4-Cyanophenol is employed in various organic synthesis pathways. It is used to introduce the 4-cyanophenoxy moiety into target molecules across diverse chemical research fields.
| Molecular weight | 119.12 |
|---|---|
| Linear formula | NCC6H4OH |
| Assay | 95% |
| Melting point | 110-113 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
- 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 | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 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-Cyanophenol used for?
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4-Cyanophenol is primarily used as an intermediate and building block in organic synthesis, including the development of pharmaceuticals, agrochemicals, and novel materials.
What are the CAS number and chemical formula for 4-Cyanophenol?
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The CAS number for 4-Cyanophenol is 767-00-0, and its chemical formula is NCC6H4OH.
What grade and purity does Tech Serve Solutions supply for 4-Cyanophenol?
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Tech Serve Solutions supplies 4-Cyanophenol with an assay of 95%. This product is supplied as a technical grade, and TSS does not represent it as USP, BP, EP, or pharmacopoeia grade.
What are the primary safety hazards associated with 4-Cyanophenol?
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4-Cyanophenol is classified as harmful if swallowed (H302), causes skin irritation (H315), causes serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, faceshields, and gloves, should be used. Handle in a well-ventilated area.
How is 4-Cyanophenol typically packed and shipped by TSS?
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Tech Serve Solutions offers expert packing and global export of chemicals. Specific packing configurations are tailored to meet product integrity and regulatory requirements for safe international shipping.
How can I request a sample or quote for 4-Cyanophenol?
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To request a sample or a quotation for 4-Cyanophenol, please use the 'Request Sample' or 'Request Quote' buttons on our website, or contact our sales team directly with your specific requirements.
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