BUTYLS is a playable word

butyl Scrabble® Dictionary

noun
pl. butyls
a hydrocarbon radical
25 Playable Words can be made from "BUTYLS"
   2-Letter Words (3 found)
   3-Letter Words (9 found)
   4-Letter Words (8 found)
   5-Letter Words (3 found)
   6-Letter Words (2 found)