Benzo[1,2-b:4,5-b']dithiophene-4,8-dione

Synonym(s):Thieno[2,3-f]benzothiophene-4,8-dione

CAS NO.：32281-36-0
Empirical Formula: C10H4O2S2
Molecular Weight: 220.27
MDL number: MFCD01927240
EINECS: 605-241-0
SAFETY DATA SHEET (SDS)
Update Date: 2025-07-24 18:13:48

Benzo[1,2-b:4,5-b']dithiophene-4,8-dione Structural

What is Benzo[1,2-b:4,5-b']dithiophene-4,8-dione?

Description

Benzo[1,2-b:4,5-b’]dithiophene is a planar symmetrical molecular structure of the thiophene derivative, enabling a better π-π?stacking and good electron delocalization that encourages charge transport. In recent years, it has been intensively studied for the application of OFETs and OPVs. The incorporation of a low-band-gap unit into the benzo[1,2-b:4,5-b’]dithiophene unit could potentially result in a red-shifted absorption due to its electron-rich properties. Benzo[1,2-b:4,5-b’]dithiophene can be chemically modified to fine-tune its chemical structure and electron properties (e.g. band gap), energy levels, and charge mobility of the small molecule/polymers of interest (at a molecular level).

The Uses of Benzo[1,2-b:4,5-b']dithiophene-4,8-dione

suzuki reaction

The Uses of Benzo[1,2-b:4,5-b']dithiophene-4,8-dione

BDTD can be used as an acceptor layer in the fabrication of polymer based solar cells.

General Description

Benzo[1,2-b:4,5-b′]dithiophene-4,8-dione (BDTD) is a conductive polymer with a symmetric and planar conjugated structure which has a hole mobility of 0.25 cm²V^-1s^-1.

Properties of Benzo[1,2-b:4,5-b']dithiophene-4,8-dione

Melting point:	260-262℃
Boiling point:	408.0±35.0 °C(Predicted)
Density	1.595
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
form	powder to crystal
color	White to Amber to Dark green
InChI	InChI=1S/C10H4O2S2/c11-7-5-1-3-13-9(5)8(12)6-2-4-14-10(6)7/h1-4H

Safety information for Benzo[1,2-b:4,5-b']dithiophene-4,8-dione

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water.