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2-(3-Bromophenoxy)-9-(4-(tert-butyl)pyridin-2-yl)-9H-carbazole CAS No.: 2448397-99-5

May 26, 2026

2-(3-Bromophenoxy)-9-(4-(tert-butyl)pyridin-2-yl)-9H-carbazole CAS No.: 2448397-99-5 , this carbazole derivative is an essential synthetic intermediate for high-end organic optoelectronic materials. Owing to its unique structural characteristics, it is widely utilized in the research of OLED materials and medicinal chemistry.

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📋Basic information:

Chemical name: 2-(3-Bromophenoxy)-9-(4-(tert-butyl)pyridin-2-yl)-9H-carbazole
CAS No.: 2448397-99-5
Molecular Formula: C27H23BrN2O
Molecular Weight: 471.39

📌Specification:

Appearance:	White powder
Purity:	≥98%
Density :	1.30±0.1 g/cm3(Predicted)
Package:	1KG/Bag, 5kg/Bag；or as per customer request
Storage:	Store in cool & dry place.

🧩Application of 2-(3-Bromophenoxy)-9-(4-(tert-butyl)pyridin-2-yl)-9H-carbazole CAS No.: 2448397-99-5

I. Core Applications

It is mainly used as a synthetic intermediate for OLED and organic optoelectronic materials to fabricate hole transport materials, luminescent materials and host materials.

II. Specific Application Scenarios

1. Synthesis of OLED (Organic Light-Emitting Diode) Materials

Hole Transport Layer (HTL) Intermediate: The carbazole moiety features strong electron-donating properties, while the pyridine moiety exhibits weak electron-withdrawing properties. This facilitates hole injection and transport, and reduces the driving voltage of devices.
Host/Dopant Matrix for Emissive Layer (EML): The D-A structure can modulate the band gap and emission color (mainly blue and green), improving device efficiency and stability.
Component for Electron Blocking Layer (EBL): The tert-butylpyridine group enhances electron blocking capability and minimizes loss caused by carrier recombination.

2. Organic Photovoltaics (OPV) and Photodetection

It is applied to synthesize donor-acceptor conjugated polymers for the active layer and interfacial layer of organic solar cells, which improves light absorption and charge separation efficiency.

It can also be used to prepare sensitive layer materials for photodetectors, realizing optical signal conversion by taking advantage of the photoresponse properties of carbazole.

3. Organic Synthesis & Pharmaceutical Intermediates

The bromine atom acts as a key reactive site. Various optoelectronic functional molecules can be derived via coupling reactions such as Suzuki reaction and Buchwald-Hartwig reaction.

Leveraging the bioactivity of the carbazole skeleton, it is adopted in the research and development of nitrogen-containing heterocyclic drugs, including candidate compounds for anti-tumor and anti-depressant therapies.

IV. Structural Advantages

Carbazole ring: High hole mobility and excellent thermal stability (high glass transition temperature, Tg).
tert-Butylpyridine: Improves solubility, enhances electron affinity and stabilizes molecular configuration.
m-Bromophenoxy group: High reactivity for easy derivatization; moderate steric hindrance inhibits molecular aggregation.

V. Common Downstream Derivatives

OLED hole transport materials: N-phenylcarbazole derivatives, pyridocarbazole derivatives, etc.
Thermally Activated Delayed Fluorescence (TADF) materials: The D-A structure enables efficient utilization of excitons.
Organic semiconductor polymers: Applied in flexible electronics and printed electronic devices.