CAS: Chemical Abstract Service Registry Number
Beech tar is used in insulation tape, tar paper, and topical medications.
Rothenberg and Hjorth found that positive patch-test reactions to a
mixture of wood tars consisting of pine, juniper, beech, and birch often
produce false-positive reactions. When a mixture of wood tars is positive,
each tar should be tested individually.
Weber, L.F., Dermatitis venenata due to native woods. Archives
of Dermatology and Syphilology, 1953. 67: p. 388-394.
Rothenborg, H.W. and N. Hjorth, Allergy to perfumes from toilet
soaps and detergents in patients with dermatitis. Archives of Dermatology,
1968. 97: p. 417.
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