4-Ethoxyphenol
4-Ethoxyphenol (CAS 622-62-8), with the molecular formula C2H5OC6H4OH and a molecular weight of 138.16, is a valuable organic building block. This phenol derivative is primarily utilised in chemical synthesis and research laboratories. Its applications include serving as a substrate in biochemical studies, particularly for evaluating enzyme kinetics, and as an intermediate in the synthesis of more complex organic molecules. TSS supplies this compound with an assay of 99%.
- IUPAC
- Hydroquinone monoethyl ether

Enzyme Kinetics Studies
4-Ethoxyphenol serves as a substrate in research to determine kinetic constants for enzymatic activities, such as the monophenolase activity of tyrosinase.
Organic Synthesis Intermediate
As a functionalised aromatic compound, it acts as a versatile building block in the synthesis of diverse organic molecules and fine chemicals.
Laboratory Reagent
Utilised in academic and industrial research settings for various experimental procedures and analytical applications.
| Molecular weight | 138.16 |
|---|---|
| Linear formula | C2H5OC6H4OH |
| Assay | 99% |
| Boiling point | 121 °C/9 mmHg(lit.) |
| Application | 4-Ethoxyphenol has been used as substrate to evaluate kinetic constant for the monophenolase activity of mushroom tyrosinase1. |
| Melting point | 64-67 °C(lit.) |

Hazard statements
- 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, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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-Ethoxyphenol used for?
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4-Ethoxyphenol is used as a substrate in enzymatic studies, particularly for evaluating kinetic constants of enzymes like tyrosinase. It also serves as a building block in organic synthesis.
What are the CAS number and formula for 4-Ethoxyphenol?
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The CAS number for 4-Ethoxyphenol is 622-62-8, and its molecular formula is C2H5OC6H4OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Ethoxyphenol with a minimum purity of 99%. TSS does not represent this product as USP, BP, EP, or pharmacopoeia grade unless explicitly stated.
How should 4-Ethoxyphenol be handled safely?
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Handle 4-Ethoxyphenol with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. It is classified as a warning substance, causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335).
Is 4-Ethoxyphenol a controlled substance?
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Based on the provided data, 4-Ethoxyphenol is not indicated as a controlled substance.
How is 4-Ethoxyphenol packed and exported?
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4-Ethoxyphenol is carefully packed according to industry standards and exported globally by Tech Serve Solutions to meet the needs of research and synthesis applications worldwide.
How can I request a quote or sample for 4-Ethoxyphenol?
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To request a quote or a sample of 4-Ethoxyphenol, please contact our sales team via the website or by phone, referencing CAS number 622-62-8.
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