5-Chloro-2,3-pyridinediol
5-Chloro-2,3-pyridinediol (CAS 53233-89-9), with the empirical formula C5H4ClNO2 and a molecular weight of 145.54, is a chemical compound primarily used in materials science and polymer science. As a dihydroxypyridine derivative, it serves as a monomer or building block in the synthesis of various polymers and advanced materials. Its chemical structure lends itself to further functionalization in organic synthesis research.
- IUPAC
- 5-Chloro-2,3-dihydroxypyridine
- Synonyms
- 5-Chloro-2,3-dihydroxypyridine

Monomer for Polymer Synthesis
5-Chloro-2,3-pyridinediol can function as a monomer in the creation of specialty polymers. Its unique structure allows for incorporation into polymer backbones, potentially imparting specific thermal or chemical resistance properties.
Materials Science Research
This compound is utilised in materials science for the development of novel materials. Its diol functionality and pyridine ring offer sites for chemical modification and integration into complex molecular architectures.
Organic Synthesis Intermediate
As a functionalised pyridine derivative, 5-Chloro-2,3-pyridinediol serves as a valuable intermediate in organic synthesis, enabling the construction of more complex molecules for various research and development purposes.
| Molecular weight | 145.54 |
|---|---|
| Empirical formula | C5H4ClNO2 |
| Assay | 95% |
| Melting point | 295 °C (dec.)(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 5-Chloro-2,3-pyridinediol used for?
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5-Chloro-2,3-pyridinediol is primarily used in materials science and polymer science as a monomer or building block for synthesising novel materials and polymers. It also finds application as an intermediate in organic synthesis.
What is the CAS number and formula for 5-Chloro-2,3-pyridinediol?
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The CAS number for 5-Chloro-2,3-pyridinediol is 53233-89-9, and its empirical formula is C5H4ClNO2.
What grade and purity does Tech Serve Solutions supply for 5-Chloro-2,3-pyridinediol?
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Tech Serve Solutions supplies 5-Chloro-2,3-pyridinediol with an assay of 95%. This product is suitable for research and development purposes and is not represented as USP, BP, or EP grade.
How should 5-Chloro-2,3-pyridinediol be handled safely?
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5-Chloro-2,3-pyridinediol is a Warning substance that may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be worn during handling. Ensure adequate ventilation and avoid dust formation.
Is 5-Chloro-2,3-pyridinediol a controlled substance?
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The provided data does not indicate that 5-Chloro-2,3-pyridinediol is a controlled substance.
How is 5-Chloro-2,3-pyridinediol packaged and shipped?
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Tech Serve Solutions, a global supplier and exporter, ensures that all products, including 5-Chloro-2,3-pyridinediol, are packaged and shipped in compliance with relevant international regulations for chemical transport.
How can I request a quote or sample for 5-Chloro-2,3-pyridinediol?
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To request a quote or a sample of 5-Chloro-2,3-pyridinediol, please contact our sales department through the official Tech Serve Solutions website or by calling our dedicated customer service line.
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