5-Hydroxynicotinic acid
5-Hydroxynicotinic acid (CAS: 27828-71-3, C6H5NO3) is a heterocyclic organic compound with a molecular weight of 139.11 g/mol. This pyridine derivative serves as a valuable building block in chemical synthesis, particularly within the fields of medicinal chemistry and materials science. Its structure allows for diverse chemical modifications, making it a versatile intermediate for creating more complex molecules. Tech Serve Solutions supplies this compound for research and development purposes.
- IUPAC
- 5-Hydroxypyridine-3-carboxylic acid

Chemical Synthesis Intermediate
Utilised as a foundational molecule in the synthesis of novel organic compounds. Its functional groups enable participation in various coupling and derivatisation reactions.
Research and Development
A key reagent for academic and industrial laboratories exploring new molecular architectures and chemical pathways. Its pyridine core is relevant in medicinal chemistry.
Heterocyclic Chemistry
Serves as a versatile building block for constructing complex heterocyclic systems, including pyridine-based scaffolds with potential pharmaceutical applications.
| Molecular weight | 139.11 |
|---|---|
| Empirical formula | C6H5NO3 |
| Assay | ≥96.5% (HPLC)97% |

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 |
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-Hydroxynicotinic acid used for?
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5-Hydroxynicotinic acid is primarily used as a building block in chemical synthesis and for research and development purposes, particularly in the creation of novel organic compounds and heterocyclic systems.
What is the CAS number and chemical formula for 5-Hydroxynicotinic acid?
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The CAS number is 27828-71-3, and the chemical formula is C6H5NO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Hydroxynicotinic acid with an assay of ≥96.5% (HPLC) or 97%. We do not represent this product as USP, BP, or EP grade.
What are the main hazards associated with 5-Hydroxynicotinic acid?
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5-Hydroxynicotinic acid is classified as a Warning with hazards including skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment such as a dust mask (N95), eyeshields, and gloves should be used.
How is 5-Hydroxynicotinic acid shipped?
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Tech Serve Solutions exports and ships fine chemicals globally, adhering to all necessary regulations for safe transport.
How can I request a sample or quote for 5-Hydroxynicotinic acid?
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To request a sample or a quote, please contact our sales team through the website or by calling our direct line.
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