2,5-Dibromothiophene

CAS NO.：3141-27-3
Empirical Formula: C4H2Br2S
Molecular Weight: 241.93
MDL number: MFCD00005420
EINECS: 221-547-3
SAFETY DATA SHEET (SDS)
Update Date: 2024-07-30 14:17:11

What is 2,5-Dibromothiophene?

Chemical properties

Light Yellow Liquid

The Uses of 2,5-Dibromothiophene

2,5-Dibromothiophene, is mainly used as pharmaceutical intermediate and synthesis intermediate.

The Uses of 2,5-Dibromothiophene

2,5-Dibromothiophene was used as starting reagent for the synthesis of α,α′-didecylquater-, -quinque- and -sexi-thiophenes. It was used in the preparation of soluble α,ω-diformyl-a-oligothiophenes.

Synthesis Reference(s)

The Journal of Organic Chemistry, 58, p. 3072, 1993 DOI: 10.1021/jo00063a028
Synthesis, p. 890, 1988 DOI: 10.1055/s-1988-27740

General Description

2,5-Dibromothiophene polymerizes by debromination with magnesium catalyzed by nickel compounds to form poly(2,5- thienylene) .

Properties of 2,5-Dibromothiophene

Melting point:	-6 °C (lit.)
Boiling point:	211 °C (lit.)
Density	2.147 g/mL at 25 °C (lit.)
refractive index	1.627-1.63
Flash point:	99 °C
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
solubility	Chloroform, Methanol
form	Liquid
color	Clear pale yellow to brown
Specific Gravity	2.147
Water Solubility	practically insoluble
BRN	109899
CAS DataBase Reference	3141-27-3(CAS DataBase Reference)
NIST Chemistry Reference	Thiophene, 2,5-dibromo-(3141-27-3)
EPA Substance Registry System	Thiophene, 2,5-dibromo- (3141-27-3)

Safety information for 2,5-Dibromothiophene

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	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.