2-Bromothiophene

2-Bromothiophene is an organosulfur compound with the formula C4H3BrS. It is a colorless liquid. Unlike 3-bromothiophene, the 2-bromo isomer is prepared directly by partial bromination of thiophene. It is a precursor to several drugs, including tipepidine, ticlopidine, and clopidogrel.[1]

2-Bromothiophene
Names
Preferred IUPAC name
2-Bromothiophene
Other names
2-Thienyl bromide, 2BT
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.012.454
EC Number
  • 213-699-4
Properties
C4H3BrS
Molar mass 163.03 g·mol−1
Appearance Colorless liquid
Density 1.684 g/mL
Melting point −10 °C (14 °F; 263 K)
Boiling point 153.5 °C (308.3 °F; 426.6 K)
Immiscible
Hazards
Main hazards N,Xi,Xn,T
GHS pictograms
GHS Signal word Danger
GHS hazard statements
H226, H300, H301, H310, H315, H318, H319, H330
P210, P233, P240, P241, P242, P243, P260, P262, P264, P270, P271, P280, P284, P301+310, P302+350, P302+352, P303+361+353, P304+340, P305+351+338, P310, P320, P321, P322, P330, P332+313
Flash point 56 °C (133 °F; 329 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Safety

The LD50 is low, 200 – 250 mg/kg (oral, rat).[1]

References

  1. Jonathan Swanston (2006). "Thiophene". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a26_793.pub2.
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