ETHEPHON is a playable word

ethephon Scrabble® Dictionary

noun
pl. ethephons
a synthetic plant growth regulator
77 Playable Words can be made from "ETHEPHON"
   2-Letter Words (15 found)
   5-Letter Words (4 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)