The wood also yields a red dye called brazilin, which oxidizes to brazilein.
British Dictionary definitions for brazilin
brazilin
/ˈbræzɪlɪn/
noun
1.
a pale yellow soluble crystalline solid, turning red in alkaline solution, extracted from brazil wood and sappanwood and used in dyeing and as an indicator. Formula: C16H14O5
Word Origin
C19: from French brésiline, from brésil brazil wood