8-Hydroxyquinoline-5-sulfonic acid
8-Hydroxyquinoline-5-sulfonic acid (CAS: 84-88-8; Formula: C9H7NO4S) is a chemical compound with a molecular weight of 225.22 g/mol. It functions as a versatile building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. This substance is recognized for its utility in preparing more complex molecules and is a key intermediate in various research and development applications.

Chemical Synthesis Intermediate
8-Hydroxyquinoline-5-sulfonic acid serves as a valuable precursor in the synthesis of diverse organic compounds. Its structure lends itself to further functionalization, enabling the creation of novel molecules for various chemical research endeavours.
Heterocyclic Compound Preparation
This compound is employed in the construction of quinoline derivatives and other heterocyclic systems. Its application is instrumental in academic and industrial research focused on developing new materials and pharmaceuticals.
Analytical Reagent Component
While not explicitly detailed in the provided data, sulfonic acid derivatives of hydroxyquinolines can sometimes find use as chelating agents or indicators in analytical chemistry, suggesting potential applications in this field.
| Molecular weight | 225.22 |
|---|---|
| Empirical formula | C9H7NO4S |

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 8-Hydroxyquinoline-5-sulfonic acid used for?
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8-Hydroxyquinoline-5-sulfonic acid is primarily used as a building block in chemical synthesis, particularly for preparing heterocyclic compounds. It is a valuable intermediate in research and development.
What are the CAS number and formula for 8-Hydroxyquinoline-5-sulfonic acid?
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The CAS number for 8-Hydroxyquinoline-5-sulfonic acid is 84-88-8, and its chemical formula is C9H7NO4S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 8-Hydroxyquinoline-5-sulfonic acid as a technical or research grade chemical. We do not represent this product as meeting USP, BP, EP, or other pharmacopoeia standards.
How should 8-Hydroxyquinoline-5-sulfonic acid be handled safely?
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8-Hydroxyquinoline-5-sulfonic acid can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Use a dust mask (type N95 recommended), wear eyeshields and gloves. Ensure good ventilation and avoid breathing dust.
Is 8-Hydroxyquinoline-5-sulfonic acid shipped internationally?
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Yes, Tech Serve Solutions specialises in the global supply and export of fine chemicals, including 8-Hydroxyquinoline-5-sulfonic acid, to researchers and industries worldwide.
How can I request a quote or sample?
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To request a quote or a sample of 8-Hydroxyquinoline-5-sulfonic acid, please use the contact form on our website or contact our sales team directly with your requirements.
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