Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by property]
6. acid
7. carbolic acid

Additional parents:

1. top of the aat hierarchies
2. Materials Facet
3. Materials
4. materials
5. materials by function
6. biological control agents
7. biocide
8. fungicide

Anotations

Scope note:

A crystalline phenol first isolated in 1719, formerly much used as a fungicide and disinfectant in conservation of works of art. While it is effective as a mold and mildew inhibitor, thymol dissolves oil paints and varnishes over time, and discolors paper to which it has been applied.