4-Ethoxysalicylic acid
4-Ethoxysalicylic acid (CAS: 10435-55-9), with the molecular formula C9H10O4 and a molecular weight of 182.17 g/mol, is a valuable organic building block. This compound, also known as 4-ethoxy-2-hydroxybenzoic acid, finds application in chemical synthesis. It is supplied by Tech Serve Solutions with an assay of 97%, suitable for research and development purposes.
- IUPAC
- 4-Ethoxy-2-hydroxybenzoic acid

Organic Synthesis Intermediate
As a substituted salicylic acid derivative, 4-Ethoxysalicylic acid serves as a versatile intermediate in the synthesis of more complex organic molecules. Its functional groups allow for various chemical transformations.
Building Block for Specialty Chemicals
This compound functions as a key building block in the development of specialty chemicals. Its specific structure can be incorporated into diverse molecular frameworks for targeted applications.
Research and Development
4-Ethoxysalicylic acid is utilised in laboratory settings for research purposes, enabling chemists to explore new synthetic routes and develop novel compounds with potential applications in various fields.
| Molecular weight | 182.17 |
|---|---|
| Linear formula | CH3CH2OC6H3(OH)CO2H |
| Assay | 97% |
| Melting point | 153-157 °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-Ethoxysalicylic acid used for?
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4-Ethoxysalicylic acid is primarily used as an intermediate and building block in organic synthesis and for research and development purposes.
What is the CAS number and molecular formula for 4-Ethoxysalicylic acid?
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The CAS number for 4-Ethoxysalicylic acid is 10435-55-9, and its molecular formula is C9H10O4.
What grade and purity does Tech Serve Solutions supply for 4-Ethoxysalicylic acid?
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Tech Serve Solutions supplies 4-Ethoxysalicylic acid with an assay of 97%. This product is intended for research and laboratory use and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
What are the main safety hazards associated with 4-Ethoxysalicylic acid?
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4-Ethoxysalicylic acid is classified with GHS07 symbol and a Warning signal word. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves, should be used when handling.
Is 4-Ethoxysalicylic acid available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 4-Ethoxysalicylic acid, and can fulfil international orders.
How can I request a quote or sample of 4-Ethoxysalicylic acid?
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To request a quote or a sample of 4-Ethoxysalicylic acid, please contact our sales team through the website or via direct inquiry.
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