N-Boc-2,3,4,5-tetrahydroazepine
N-Boc-2,3,4,5-tetrahydroazepine (CAS: 178172-25-3), with the molecular formula C11H19NO2 and a molecular weight of 197.27 g/mol, is a valuable heterocyclic building block. It serves as a key intermediate in organic synthesis, particularly for the construction of complex molecules. Its protected azepine ring structure makes it useful in the development of pharmaceuticals and other advanced materials.
- IUPAC
- 1-(tert-Butoxycarbonyl)-4,5,6,7-tetrahydroazepine
- Synonyms
- 5-tetrahydroazepine178172-25-3C11H19NO21-(tert-Butoxycarbonyl)-4,5,6,7-tetrahydroazepine

Pharmaceutical Intermediate
N-Boc-2,3,4,5-tetrahydroazepine is employed in the synthesis of active pharmaceutical ingredients (APIs). Its structural motif is found in various drug candidates targeting different therapeutic areas.
Organic Synthesis Reagent
This compound acts as a versatile building block in academic and industrial research for creating novel organic structures. Its tert-butoxycarbonyl (Boc) protecting group allows for selective functionalization.
Material Science
The unique heterocyclic nature of N-Boc-2,3,4,5-tetrahydroazepine can be leveraged in the development of new materials with specific chemical or physical properties.
| Molecular weight | 197.27 |
|---|---|
| Empirical formula | C11H19NO2 |
| Assay | 97% |
| Density | 1.027 g/mL at 25 °C |
| Refractive index | n20/D 1.476 |


Hazard statements
- H301Toxic if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H400Very toxic to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P301IF SWALLOWED
- P305IF IN EYES
| Flash point | 98 °C / 208.4 °F |
|---|---|
| Transport (UN / ADR) | UN 2810 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 25-36/37/38-50 |
| Safety statements (S) | 26-45-61 |
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 N-Boc-2,3,4,5-tetrahydroazepine used for?
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N-Boc-2,3,4,5-tetrahydroazepine is primarily used as a building block and intermediate in organic synthesis, particularly in the pharmaceutical industry for developing new drug candidates and in material science.
What are the CAS number and formula for N-Boc-2,3,4,5-tetrahydroazepine?
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The CAS number for N-Boc-2,3,4,5-tetrahydroazepine is 178172-25-3, and its empirical formula is C11H19NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies N-Boc-2,3,4,5-tetrahydroazepine with a minimum assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should N-Boc-2,3,4,5-tetrahydroazepine be handled?
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N-Boc-2,3,4,5-tetrahydroazepine is classified as toxic if swallowed and causes skin and eye irritation, and may cause respiratory irritation. It is also very toxic to aquatic life. Handle with appropriate personal protective equipment in a well-ventilated area, avoiding release to the environment.
How is N-Boc-2,3,4,5-tetrahydroazepine packed, shipped, and exported?
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N-Boc-2,3,4,5-tetrahydroazepine is carefully packed according to regulatory requirements for hazardous materials. As a global supplier, Tech Serve Solutions handles the export of this chemical, adhering to all international shipping regulations.
How can I request a sample or quote for N-Boc-2,3,4,5-tetrahydroazepine?
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To request a sample or a quote for N-Boc-2,3,4,5-tetrahydroazepine, please contact our sales team through the website or by phone. Provide your contact details and the quantity required.
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