Crossword clues for the word: ISOPRENE The word ISOPRENE has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for ISOPRENE Showing 1 to 7 of 7 results Clue(s) "Volatile, water-insoluble liquid" Hydrocarbon pioneers modified Liquid in synthetic rubber manufacture Petroleum byproduct used to make synthetic rubber Petroleum processing by-product Rubber compound Synthetic rubber base