Definition of "thiophene" []

• A colorless liquid, C4H4S, used as a solvent. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Benzene from which every trace of thiophene has not been eliminated cannot be transformed into cyclohexane."
• "To a small portion of this solution add slight excess of sodium carbonate, evaporate to dryness on the water-bath, dissolve in 5-10 c.c. pure sulphuric acid, add 2 drops saturated copper sulphate solution, place in a test-tube and heat in a boiling water-bath for 2 minutes, cool, add 2 or 3 drops of the alcoholic thiophene and warm gently."
• "Alcoholic thiophene solution (0.15 c.c. in 100 c.c.)."