PTERIN is a playable word

pterin Scrabble® Dictionary

noun
pl. pterins
a chemical compound
61 Playable Words can be made from "PTERIN"
   2-Letter Words (11 found)
   3-Letter Words (20 found)
   4-Letter Words (19 found)
   5-Letter Words (10 found)
   6-Letter Words (1 found)