Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by function]
6. colorant (material)
7. dye
8. [dye by composition or origin]
9. natural dye
10. vegetable dye

Anotations

Scope note:

Red dye produced from the hot water extraction of any of several tropical trees of the Caesalpinia genus. Its principal colorant is brasilin, a hydroxyanthraquinone. Used to dye textiles as early as the 12th century in Europe; the color is not lightfast and fades when heated.