4-Quinolinecarboxaldehyde
4-Quinolinecarboxaldehyde (CAS: 4363-93-3), with the molecular formula C10H7NO and a molecular weight of 157.17 g/mol, is a key organic building block. This aldehyde features a quinoline core functionalised with a formyl group. It is primarily utilised in chemical synthesis, particularly for creating heterocyclic compounds and complex organic molecules.
- IUPAC
- Cinchoninaldehyde

Synthesis of Lepidylamines
4-Quinolinecarboxaldehyde has been documented for use in the synthesis of lepidylamines, serving as a valuable precursor in organic chemistry research and development.
Heterocyclic Compound Synthesis
As a functionalised quinoline derivative, this compound is instrumental in the construction of diverse heterocyclic ring systems, offering pathways to novel molecular architectures.
Organic Building Block
Its reactive aldehyde group and quinoline moiety make it a versatile building block for creating more complex organic molecules for various research applications.
| Molecular weight | 157.17 |
|---|---|
| Empirical formula | C10H7NO |
| Assay | 97% |
| Impurities tested | 3% lepidine |
| Application | 4-Quinolinecarboxaldehyde(cinchoninaldehyde) was used in the synthesis of lepidylamines1. |
| Melting point | 45-52 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 37/38 |
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 4-Quinolinecarboxaldehyde primarily used for?
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4-Quinolinecarboxaldehyde is primarily used as a key building block in chemical synthesis, particularly for the preparation of lepidylamines and other complex organic molecules.
What are the CAS number and molecular formula for 4-Quinolinecarboxaldehyde?
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The CAS number for 4-Quinolinecarboxaldehyde is 4363-93-3 and its molecular formula is C10H7NO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Quinolinecarboxaldehyde with an assay of 97%. This product is not represented as USP, BP, EP, or any other pharmacopoeia grade.
What are the main safety concerns when handling 4-Quinolinecarboxaldehyde?
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4-Quinolinecarboxaldehyde is classified as an irritant. It can cause skin irritation (H315) and respiratory irritation (H335). Appropriate personal protective equipment, including eyeshields, gloves, and a dust mask (N95 type), should be used, and handling should occur in a well-ventilated area. Always consult the Safety Data Sheet for complete information.
How is 4-Quinolinecarboxaldehyde shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, handling the packing, shipping, and exporting of 4-Quinolinecarboxaldehyde worldwide.
How can I request a quote or sample for 4-Quinolinecarboxaldehyde?
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To request a quote or sample for 4-Quinolinecarboxaldehyde, please contact our sales team through the website or via the provided contact details.
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