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 info@ossila.com, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.

2-Bromodibenzothiophene

CAS Number 22439-61-8

Chemistry Building Blocks, Heterocyclic Building Blocks, Monomers


Product Code B1221-25g
Price $144 ex. VAT

Quality assured

Expert support

Volume discounts

Worldwide shipping

Fast and secure


An intermediate used for the synthesis of complex structures

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


2-Bromodibenzothiophene, 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.
  4. Electron Transport Materials: Synthesis, Properties and Device Performance, L. Cosimbescu et al., Int. J. Org. Chem., 2(2), 20371 (2012); DOI:10.4236/ijoc.2012.22016.
  5. Enhancement of Hole Extraction Efficiency of Dibenzothiophenes by Substitution Engineering: Toward Additive-Free Perovskite Solar Cells with Power Conversion Efficiency Exceeding 20%, R. Durgaryan et al., Sol. RRL, 6 (7), 2200128 (2022); DOI: 10.1002/solr.202200128.
  6. Synthesis and Antimicrobial Activities of Some Sulphur Containing Chromene Derivatives, T. Şerbetçi et al., Nat. Prod. Commun., 7 (7), 891-894 (2012); DOI: 10.1177/1934578X1200700.
  7. Carbazole-dibenzothiophene core as a building block of host materials for blue phosphorescent organic light-emitting diodes, S. Byeon et al., Dyes Pigm., 155, 114-120 (2018); DOI: 10.1016/j.dyepig.2018.03.033.
  8. Aggregation-induced emission characteristics of o-carborane-functionalized fluorene and its heteroanalogs: the influence of heteroatoms on photoluminescence, X. Wu et al., Mater. Chem. Front., 2020, 4, 257-267 (2020); DOI: 10.1039/C9QM00621D.
  9. Constructing a novel single-layer white organic light-emitting device through a new sky-blue fluorescent bipolar host, J. Ye et al., Org. Electron., 15 (12), 3514-3520 (2014); DOI: 10.1016/j.orgel.2014.10.007.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

Return to the top