THIOSULFATE

Yes, THIOSULFATE is a Scrabble word!

Letter values in Scrabble US: T 1, H 4, I 1, O 1, S 1, U 1, L 1, F 4, A 1, T 1, E 1.T 1 · H 4 · I 1 · O 1 · S 1 · U 1 · L 1 · F 4 · A 1 · T 1 · E 1

Is it a valid word?

• Scrabble US: valid, 17 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 17 points
• Scrabble UK: valid, 17 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 17 points
• Words with Friends: valid, 18 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 18 points