P3Y4R1R1O1L1E1S1
13 points
PYRROLES is validvalid
PYRROLE, a chemical compound [n]
PYRROLE, a colourless toxic liquid found in many naturally occurring compounds, e.g. chlorophyll, also PYRROL [n]
PYRROLE, a chemical compound [n]
PYRROLE, a colourless toxic liquid found in many naturally occurring compounds, e.g. chlorophyll, also PYRROL [n]