Crossword clues for the word: ALKYLS The word ALKYLS has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for ALKYLS Showing 1 to 8 of 8 results Clue(s) "Ethyl and propyl, for two" Carbon-based free radicals Certain chemical radicals Chemical radicals Monovalent radicals Some free radicals Univalent chemical groups Univalent radicals