Yes, TRYPSINOGEN is a Scrabble word!

Letter values in Scrabble US: T 1, R 1, Y 4, P 3, S 1, I 1, N 1, O 1, G 2, E 1, N 1.

Is it a valid word?

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

inactive precursor of trypsin; a substance secreted by the pancreas and converted to active trypsin by enterokinase in the small intestine