Yes, PYRENES is a Scrabble word!

Letter values in Scrabble US: P 3, Y 4, R 1, E 1, N 1, E 1, S 1.

Is it a valid word?

PYRENES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a pale yellow crystalline hydrocarbon C16H10 extracted from coal tar
the small hard nutlet of a drupe or drupelet; the seed and the hard endocarp that surrounds it