FREE shipping to on qualifying orders when you spend or more, processed by Ossila BV. All prices ex. VAT. Qualifying orders ship free worldwide! Fast, secure, and backed by the Ossila guarantee. It looks like you are visiting from , click to shop in or change country. Orders to the EU are processed by our EU subsidiary.

It looks like you are using an unsupported browser. You can still place orders by emailing us on, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.

Product Code B1221-25g
Price £115 ex. VAT

An intermediate used for the synthesis of complex structures

Used commonly for semiconducting molecules, oligomers in application of OLEDs, OFETs and OPVs.

Specifications | MSDS | Literature and Reviews

2-Bromodibenzothiophene (CAS number 22439-61-8), mono-brominated dibenzothiophene at 2-postion, is commonly used as an intermediate for the further synthesis of more complex structures as organic semiconductors in light-emitting diodes, field-effect transistors and photovoltaic devices.

Bipolar 4,4′-bis(dibenzothiophene-S,S-dioxide-2-yl)triphenylamine (DSTPA), containing a strongly electron-withdrawing core and a strongly electron-donating core with a biphenyl bridge, has suitable HOMO and LUMO levels for easily accepting both holes and electrons. Having a high fluorescence quantum yield of 0.98 and a high triplet energy level of 2.39 eV, DSTPA can be used as green fluorescent emitter or host material for red phosphors [1].

9-(dibenzothiophen-2-yl)-3,6-bis(carbazol-9-yl)-9H-carbazole (DB2tCz), a host material synthesised from 2-bromodibenzothiophene and 3,6-bis(carbazol-9-yl)-9H-carbazole showed high glass transition temperature (Tg = 185 °C) and triplet energy level (ET = 2.93 eV). Vacuum deposited blue PhOLED device with FIrPic as the phosphorescence emitter and DB2tCz exhibited maximum current efficiency of 35.6 cd A−1, power efficiencies of 29.4 lm W−1, and external quantum efficiencies of 20.0% [2]

General Information

CAS Number 22439-61-8
Chemical Formula C12H7BrS
Full Name 2-Bromodibenzothiophene
Molecular Weight 263.15 g/mol
Synonyms 2-Bromodibenzo[b,d]thiophene
Classification / Family Dibenzothiophene, Semiconductor synthesis intermediates, Low band gap polymers, OLED, OFETs, organic photovoltaics

Chemical Structure

2-Bromodibenzothiophene chemical structure, 22439-61-8
2-Bromodibenzothiophene chemical structure, CAS 22439-61-8

Product Details

Purity >98% (1H NMR)
Melting Point Tm = 250-252 °C
Appearance White to off-white powder/crystals

MSDS Documentation

2-Bromodibenzothiophene2-Bromodibenzothiophene MSDS Sheet

Literature and Reviews

  1. A Bipolar Transporter as an Efficient Green Fluorescent Emitter and Host for Red Phosphors in Multi- and Single-Layer Organic Light-Emitting Diodes, J Ye et al., Chem. Eur. J., 20 (42), 13762-13769 (2014); DOI: 10.1002/chem.201402925.
  2. New sulfur-containing host materials for blue phosphorescent organic light-emitting diodes, J. Bin et al., J. Mater. Chem., 22, 21720-21726 (2012); DOI: 10.1039/C2JM34165D.
  3. Novel yellow phosphorescent iridium complexes with cycolmetalated (pyridin-2-yl)dibenzothiophene-S,S-dioxide ligands for singly doped emissive layer hybrid white organic light-emitting diodes, M. Luo et al., Opt. Mater., 91, 439-446 (2019); DOI: 10.1016/j.optmat.2019.04.006.
Return to the top