4-Methoxyphenol
4-Methoxyphenol (CAS: 150-76-5; Formula: CH3OC6H4OH) is a versatile organic compound with a molecular weight of 124.14 g/mol. It functions as a crucial building block in chemical synthesis, particularly within organic chemistry and for the production of various oxygen-containing compounds. Its properties make it suitable for a range of industrial applications, serving as a valuable reagent for chemists.
- IUPAC
- 4-Hydroxyanisole,4-MP,HQMME,Hydroquinone monomethyl ether,MEHQ,MQ-F,p-Guaiacol
- Synonyms
- 4-Hydroxyanisole4-MPHQMMEHydroquinone monomethyl etherMEHQMQ-Fp-Guaiacol

Chemical Synthesis Intermediate
4-Methoxyphenol serves as an important intermediate in the synthesis of more complex organic molecules. Its phenolic hydroxyl group and methoxy substituent offer reactive sites for various chemical transformations.
Organic Building Block
As a fundamental organic building block, this compound is employed in constructing diverse molecular architectures. It is particularly useful in reactions involving phenols and aromatic ethers.
Reagent for Organic Chemistry
The chemical properties of 4-Methoxyphenol make it a useful reagent in various laboratory and industrial organic chemistry processes. It is utilised in the development and production of fine chemicals.
| Molecular weight | 124.14 |
|---|---|
| Linear formula | CH3OC6H4OH |
| Assay | 99% |
| Grade | ReagentPlus® |
| Boiling point | 243 °C(lit.) |
| Vapour pressure | <0.01 mmHg (20 °C) |
| Vapour density | 4.3 (vs air) |
| Melting point | 55-57 °C(lit.) |
| Autoignition temp | 789 °F |

Hazard statements
- H302Harmful if swallowed
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36-43 |
| Safety statements (S) | 24/25-26-37/39-46 |
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-Methoxyphenol used for?
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4-Methoxyphenol is primarily used as a building block and intermediate in chemical synthesis, particularly in organic chemistry.
What are the CAS number and chemical formula for 4-Methoxyphenol?
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The CAS number for 4-Methoxyphenol is 150-76-5, and its chemical formula is CH3OC6H4OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Methoxyphenol with an assay of 99%, designated as ReagentPlus®. We do not represent this product as USP, BP, or EP grade.
How should 4-Methoxyphenol be handled safely?
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4-Methoxyphenol is classified as a Warning substance (GHS07) and is harmful if swallowed (H302), may cause an allergic skin reaction (H317), and causes serious eye irritation (H319). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, faceshields, and gloves, should be used. Ensure good ventilation and avoid breathing dust.
How is 4-Methoxyphenol packed and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures appropriate packaging for safe handling and international shipment of 4-Methoxyphenol.
How can I request a quote or sample for 4-Methoxyphenol?
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To request a quote or a sample of 4-Methoxyphenol, please contact the Tech Serve Solutions sales department through our website or by phone.
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