Pyrrole is a colourless to brown liquid with chloroform odour, having the chemical formula C4H5N and molecular mass 114.2. It is used to produce pharmaceuticals and electroconducting polymers.
Chemical structure:
H H
\ /
C--C
// \\
H--C C--H
\ /
N
|
H
Sources:
http://omlc.ogi.edu/spectra/PhotochemCAD/html/pyrrole.html
www.basf.com/businesses/chemicals/diols/pdfs/pyrrole.pdf