Quinaldine
Quinaldine (CAS: 91-63-4), a methylquinoline derivative with the chemical formula C10H9N, is a foundational organic compound. It serves as a crucial intermediate in the synthesis of various chemicals, dyes, and pharmaceuticals. With a molecular weight of 143.19 g/mol, quinaldine is a versatile building block utilised across chemical synthesis and research laboratories.
- IUPAC
- 2-Methylquinoline
- Synonyms
- 2-MethylquinolineQuinoline, 2-methyl-

Chemical Synthesis Intermediate
Quinaldine acts as a key intermediate in the production of complex organic molecules. Its reactive methyl group and heterocyclic structure make it valuable for introducing the quinoline moiety into larger compounds.
Dye Production
Historically, quinaldine has been employed in the synthesis of certain cyanine dyes and related colorants. These dyes find applications in various industrial and scientific fields.
Pharmaceutical Precursor
This compound serves as a precursor in the development of specific pharmaceutical agents. Its structure can be modified to create molecules with potential therapeutic properties.
Research and Development
Quinaldine is utilized in academic and industrial research settings as a reagent or building block for novel compound discovery and methodology development.
| Molecular weight | 143.19 |
|---|---|
| Empirical formula | C10H9N |
| Assay | ≥95.0% (GC) |
| Boiling point | 105-107 °C/10 mmHg(lit.)248 °C(lit.) |
| Density | 1.058 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.612(lit.) |
| Solubility | chloroform: soluble(lit.)diethyl ether: soluble(lit.)water: insoluble(lit.) |
| Melting point | −9-−3 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 79 °C / 174.2 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 21/22 |
| Safety statements (S) | 36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | human ... CYP1A2(1544) |
|---|
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 Quinaldine (CAS 91-63-4) used for?
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Quinaldine is primarily used as an intermediate in chemical synthesis, including the production of dyes and pharmaceutical precursors. It is also employed in research and development laboratories.
What are the CAS number and chemical formula for Quinaldine?
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The CAS number for Quinaldine is 91-63-4, and its chemical formula is C10H9N.
What grade and purity does Tech Serve Solutions supply for Quinaldine?
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Tech Serve Solutions supplies Quinaldine with an assay of ≥95.0% (GC). This product is not represented as USP, BP, EP, or other pharmacopoeia grades.
How should Quinaldine be handled safely?
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Quinaldine is harmful if swallowed or in contact with skin (H302 + H312). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (e.g., type ABEK respirator filter), should be used when handling. Refer to the Safety Data Sheet for detailed guidance.
Is Quinaldine a controlled substance?
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The provided data does not indicate that Quinaldine is a controlled substance.
How is Quinaldine packed, shipped, and exported?
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Quinaldine is packed according to industry standards for chemical reagents and is available for global export. Specific packaging details depend on quantity and destination.
How can I request a sample or quote for Quinaldine?
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To request a sample or obtain a quotation for Quinaldine, please contact our sales department through the website or by phone.
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