-
Name
5,5'-Dibromo-2,2'-bithiophene
- EINECS
- CAS No. 4805-22-5
- Article Data59
- CAS DataBase
- Density 1.951 g/cm3
- Solubility Slightly soluble in water.
- Melting Point 144-146 °C(lit.)
- Formula C8H4Br2S2
- Boiling Point 318.6 °C at 760 mmHg
- Molecular Weight 324.06
- Flash Point 146.5 °C
- Transport Information
- Appearance white to light yellow shiny flakes
- Safety 36/37
- Risk Codes 20/21/22
-
Molecular Structure
-
Hazard Symbols
Xn
- Synonyms 5,5'-Dibromo-2,2'-bithienyl;5,5'-Dibromo-2,2'-dithienyl;5,5'-Dibromo-2,2'-dithiophene;
- PSA 56.48000
- LogP 5.00160
5,5'-Dibromo-2,2'-bithiophene Chemical Properties
Molecular Structure of 5,5'-Dibromo-2,2'-bithiophene (CAS NO.4805-22-5):
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Empirical Formula: C8H4Br2S2
Molecular Weight: 324.0554
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 1
Polar Surface Area: 56.48 Å2
Index of Refraction: 1.683
Molar Refractivity: 62.99 cm3
Molar Volume: 166 cm3
Surface Tension: 52.9 dyne/cm
Density: 1.951 g/cm3
Flash Point: 146.5 °C
Enthalpy of Vaporization: 53.78 kJ/mol
Boiling Point: 318.6 °C at 760 mmHg
Vapour Pressure: 0.000667 mmHg at 25°C
Melting point: 143-146 ºC
Product Categories: Thiophenes; Functional Materials; Reagents for Conducting Polymer Research; Thiophene Derivatives (for Conduting Polymer Research); Thiophen;Heterocycles; Halogenated Heterocycles; Heterocyclic Building Blocks; Organic Electronics and Photonics; Synthetic Tools and Reagents; Thiophene Monomers and Building BlocksHeterocyclic Building Blocks; ThiophenesBuilding Blocks
5,5'-Dibromo-2,2'-bithiophene Safety Profile
Hazard Codes: 
Xn
Risk Statements: 20/21/22
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
Safety Statements: 36/37
S36/37:Wear suitable protective clothing and gloves.
WGK Germany: 3
5,5'-Dibromo-2,2'-bithiophene Specification
5,5'-Dibromo-2,2'-bithiophene , with CAS number of 4805-22-5, can be called 5,5'-dibromo-2,2'-dithiophene ; 5,5''-Dibromo-2,2''-bithiophene: 99.8%;2,2'-Bi(5-bromothiophene) ; 5,5'-Dibromo-2,2'-bithiophene,99% . It is a white to light yellow shiny flakes, can be used as a termination reagent for polymer ization.
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