Yes, SABINS is a Scrabble word!

Letter values in Scrabble US: S 1, A 1, B 3, I 1, N 1, S 1.

Is it a valid word?

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

a unit of acoustic absorption equivalent to the absorption by a square foot of a surface that absorbs all incident sound
United States microbiologist (born in Poland) who developed the Sabin vaccine that is taken orally against poliomyelitis (born 1906)

Also: albert sabin, albert bruce sabin.