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. pigments
8. [pigment by color]
9. brown pigment
10. organic brown pigment

Anotations

Scope note:

Brown extract obtained from the roots of Glycyrrhiza glabra; it is water soluble and forms a sticky, viscous fluid. The brown liquid was used as a thin, transparent glaze for paintings; it was sometimes added to bister to improve its working properties. It is also used for other purposes, including as a flavoring agent, in fire extinguishers, and added to fiber-based insulated building boards as an insect repellent.