3-Hydroxy-2-methyl-4-quinolinecarboxylic acid
3-Hydroxy-2-methyl-4-quinolinecarboxylic acid (CAS: 117-57-7), a quinoline derivative with the molecular formula C11H9NO3 and a molecular weight of 203.19, serves as a valuable building block in chemical synthesis. This compound is primarily utilised in research and development settings for the creation of novel chemical entities. Its chemical structure lends itself to various synthetic transformations, making it a key intermediate for chemists exploring new molecular architectures.

Chemical Synthesis Intermediate
3-Hydroxy-2-methyl-4-quinolinecarboxylic acid is employed as a precursor and intermediate in complex organic synthesis pathways. Its functional groups allow for diverse chemical modifications and incorporation into larger molecular structures for research purposes.
Heterocyclic Chemistry Research
As a member of the quinoline family, this compound is of interest in heterocyclic chemistry research. It can be used to study novel reactions and develop new synthetic methodologies involving quinoline scaffolds.
Building Block for Novel Compounds
The compound functions as a versatile building block for the synthesis of new chemical substances. Its structure provides a foundation for chemists to construct molecules with potential applications in various scientific fields.
| Molecular weight | 203.19 |
|---|---|
| Empirical formula | C11H9NO3 |
| Assay | 97% |
| Application | 3-Hydroxy-2-methyl-4-quinolinecarboxylic acid may be used in chemical synthesis studies. |
| Melting point | 235 °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) | 1 |
| 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 3-Hydroxy-2-methyl-4-quinolinecarboxylic acid used for?
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3-Hydroxy-2-methyl-4-quinolinecarboxylic acid is primarily used as a building block in chemical synthesis studies and research.
What is the CAS number and chemical formula for 3-Hydroxy-2-methyl-4-quinolinecarboxylic acid?
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The CAS number is 117-57-7 and the chemical formula is C11H9NO3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Hydroxy-2-methyl-4-quinolinecarboxylic acid with an assay of 97%. This product is supplied for research and development purposes and is not represented as USP, BP, or EP grade.
How should 3-Hydroxy-2-methyl-4-quinolinecarboxylic acid be handled?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust. Ensure adequate ventilation. Refer to the safety data sheet for comprehensive handling information.
Is 3-Hydroxy-2-methyl-4-quinolinecarboxylic acid exported by TSS?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 3-Hydroxy-2-methyl-4-quinolinecarboxylic acid.
How can I request a sample or quote for 3-Hydroxy-2-methyl-4-quinolinecarboxylic acid?
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Please contact our sales team via the website or by phone to request a sample or a quotation for 3-Hydroxy-2-methyl-4-quinolinecarboxylic acid.
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