6-Hydroxy-3,4-dihydro-2(1H)-quinolinone
6-Hydroxy-3,4-dihydro-2(1H)-quinolinone (CAS 54197-66-9) is a heterocyclic organic compound with the molecular formula C9H9NO2 and a molecular weight of 163.17 g/mol. This chemical serves as a valuable building block in organic synthesis, particularly for the construction of more complex quinoline-based structures. Its utility extends to research and development within the pharmaceutical and chemical industries, facilitating the creation of novel compounds and intermediates.
- IUPAC
- 6-Hydroxy-1,2,3,4-tetrahydro-2-quinolinone,6-Hydroxy-3,4-dihydrocarbstyril
- Synonyms
- 6-Hydroxy-1,2,3,4-tetrahydro-2-quinolinone6-Hydroxy-3,4-dihydrocarbstyril

Organic Synthesis Intermediate
Serves as a key building block in the synthesis of complex organic molecules, particularly those containing the quinoline scaffold. Its functional groups allow for diverse chemical transformations.
Pharmaceutical Research
Utilised in the development of novel pharmaceutical agents and intermediates. Its structural features are relevant for creating compounds with potential biological activity.
Chemical Research and Development
Employed in academic and industrial research laboratories for the exploration of new chemical entities and synthetic methodologies. Aids in the study of heterocyclic chemistry.
| Molecular weight | 163.17 |
|---|---|
| Empirical formula | C9H9NO2 |
| Assay | 97% |
| Melting point | 236-240 °C |

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 6-Hydroxy-3,4-dihydro-2(1H)-quinolinone used for?
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6-Hydroxy-3,4-dihydro-2(1H)-quinolinone is primarily used as a building block in organic synthesis and in pharmaceutical and chemical research and development for creating novel compounds.
What is the CAS number and molecular formula for 6-Hydroxy-3,4-dihydro-2(1H)-quinolinone?
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The CAS number is 54197-66-9 and the molecular formula is C9H9NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 6-Hydroxy-3,4-dihydro-2(1H)-quinolinone with an assay of 97%. TSS does not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should 6-Hydroxy-3,4-dihydro-2(1H)-quinolinone be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. Ensure good ventilation and avoid breathing dust. In case of contact with eyes, rinse cautiously with water for several minutes and seek medical advice if irritation persists.
How is 6-Hydroxy-3,4-dihydro-2(1H)-quinolinone shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. We handle all packaging and export documentation to ensure safe and compliant delivery worldwide.
How can I request a quote or sample for 6-Hydroxy-3,4-dihydro-2(1H)-quinolinone?
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To request a quote or sample, please contact our sales team through the website or by phone, providing your specific requirements and shipping details.
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