Yes, BAOBAB is a Scrabble word!

Letter values in Scrabble US: B 3, A 1, O 1, B 3, A 1, B 3.

Is it a valid word?

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

African tree having an exceedingly thick trunk and fruit that resembles a gourd and has an edible pulp called monkey bread

Also: monkey-bread tree, adansonia digitata.