Hematoxylin

**Definition:** A dye obtained from the heartwood of logwood (Haematoxylon campechianum Linn., Leguminosae) used as a stain in microscopy and in the manufacture of ink.

**Tree numbers:** - D03.383.663.283.600 - D03.633.100.150.600

**Synonyms:** - Hydroxybrasilin - Hydroxybrazilin - Hematoxiline - Hemotoxylin