1,2,3,4-Tetrahydroquinoline
1,2,3,4-Tetrahydroquinoline (CAS 635-46-1, C9H11N) is a valuable heterocyclic organic compound with a molecular weight of 133.19 g/mol. It serves as a crucial building block in organic synthesis, particularly within the realm of chemical research and development. Its structural features make it useful for creating more complex molecules, finding utility in the development of pharmaceuticals and advanced materials.
- IUPAC
- THQ
- Synonyms
- 4-Tetrahydroquinoline635-46-1C9H11N

Organic Synthesis Intermediate
1,2,3,4-Tetrahydroquinoline is employed as a versatile intermediate in the synthesis of complex organic molecules. Its heterocyclic structure is often incorporated into novel compounds being investigated for various applications.
Pharmaceutical Research
This compound serves as a precursor or building block in the development of potential pharmaceutical agents. Researchers utilise its structure to explore new therapeutic compounds.
Material Science
It can be used in the synthesis of novel materials. The incorporation of the tetrahydroquinoline moiety can influence the properties of polymers and other advanced materials.
| Molecular weight | 133.19 |
|---|---|
| Empirical formula | C9H11N |
| Assay | ≥96.0% (GC) |
| Boiling point | 113-117 °C/10 mmHg(lit.)249 °C(lit.) |
| Density | 1.061 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.593(lit.)n20/D 1.594 |
| Melting point | 9-14 °C(lit.) |


Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H350May cause cancer
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 101 °C / 213.8 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 45-36/37/38 |
| Safety statements (S) | 53-26-45 |
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 1,2,3,4-Tetrahydroquinoline primarily used for?
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1,2,3,4-Tetrahydroquinoline is primarily used as a building block in organic synthesis and for research in pharmaceutical development and material science.
What are the CAS number and molecular formula for 1,2,3,4-Tetrahydroquinoline?
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The CAS number for 1,2,3,4-Tetrahydroquinoline is 635-46-1, and its molecular formula is C9H11N.
What grade and purity does Tech Serve Solutions supply for 1,2,3,4-Tetrahydroquinoline?
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Tech Serve Solutions supplies 1,2,3,4-Tetrahydroquinoline with an assay of ≥96.0% (GC). TSS does not represent this product as USP, BP, EP or any other pharmacopoeial grade.
How should 1,2,3,4-Tetrahydroquinoline be handled safely?
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1,2,3,4-Tetrahydroquinoline is classified as Danger. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). It is also suspected of causing cancer (H350). Use in a well-ventilated area with appropriate personal protective equipment, including eyeshields and gloves. Consult the Safety Data Sheet for full handling guidelines.
How is 1,2,3,4-Tetrahydroquinoline packed and shipped globally by TSS?
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Tech Serve Solutions expertly packs and ships fine chemicals, pharmaceutical intermediates, and laboratory reagents globally, adhering to all relevant transport regulations.
How can I request a sample or quote for 1,2,3,4-Tetrahydroquinoline?
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To request a sample or a quotation for 1,2,3,4-Tetrahydroquinoline, please contact our sales team through the website or by phone.
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