Diethyl 2,5-dihydroxyterephthalate
Diethyl 2,5-dihydroxyterephthalate (CAS 5870-38-2) is a fine chemical intermediate with the molecular formula (HO)2C6H2(CO2CH2CH3)2 and a molecular weight of 254.24 g/mol. This compound serves as a valuable building block in materials science, particularly in polymer synthesis. Its dihydroxy and diester functionalities allow for diverse chemical transformations, making it a key component in the development of advanced materials and speciality chemicals.
- Synonyms
- (HO)2C6H2(CO2CH2CH3)2

Monomer for Polymer Synthesis
This compound can be used as a monomer in the synthesis of polyesters and other polymers, contributing specific properties due to its aromatic core and functional groups.
Intermediate in Organic Synthesis
Its structure makes it a useful intermediate for the preparation of more complex organic molecules and speciality chemicals.
Materials Science Research
Researchers in materials science may utilise this compound for developing novel materials with tailored characteristics, leveraging its unique chemical architecture.
| Molecular weight | 254.24 |
|---|---|
| Linear formula | (HO)2C6H2(CO2CH2CH3)2 |
| Assay | 97% |
| Melting point | 135-137 °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) | 26-37/39 |
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 Diethyl 2,5-dihydroxyterephthalate used for?
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Diethyl 2,5-dihydroxyterephthalate is primarily used as a monomer in polymer synthesis and as an intermediate in organic chemistry, particularly within materials science.
What are the CAS number and chemical formula for Diethyl 2,5-dihydroxyterephthalate?
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The CAS number is 5870-38-2 and the linear chemical formula is (HO)2C6H2(CO2CH2CH3)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Diethyl 2,5-dihydroxyterephthalate with an assay of 97%. We do not represent this product as USP, BP, EP, or any pharmacopoeia grade.
What are the safety and handling precautions for this chemical?
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This compound is classified as a warning. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area.
Is Diethyl 2,5-dihydroxyterephthalate a controlled substance?
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The provided data does not indicate that Diethyl 2,5-dihydroxyterephthalate is a controlled substance.
How is this chemical packed and shipped?
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Tech Serve Solutions exports fine chemicals, pharmaceutical intermediates, and laboratory reagents globally. Specific packing details are available upon request.
How can I request a sample or a quote for Diethyl 2,5-dihydroxyterephthalate?
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You can request a sample or a quote by contacting our sales team directly through the TSS website or by providing your requirements via email.
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