Avobenzone

Agent Name
Avobenzone
CAS Number
70356-09-1
Formula
C20-H22-O3
Major Category
Other Uses
Avobenzone formula graphical representation
Synonyms
4-tert-butyl-4'-methoxydibenzoylmethane; Butyl methoxydibenzoylmethane; 1,3-Propanedione, 1-(4-(1,1-dimethylethyl)phenyl)-3-(4-methoxyphenyl)-; 1-(4-(1,1-Dimethylethyl)phenyl)-3-(4-methoxyphenyl)-1,3-propanedione; 1-(p-tert-Butylphenyl)-3-(p-methoxyphenyl)-1,3-propanedione; Avobenzona [INN-Spanish]; Avobenzonum [INN-Latin]; Parsol 1789; [ChemIDplus]
Category
Sunscreens
Description
Solid; [Merck Index] Yellow to light tan crystalline powder; [MSDSonline]
Sources/Uses
Used as an ultraviolet sunscreen; [Merck Index]
Comments
It caused one positive photo patch tests in a series of 187 photosensitive patients; It has been used as a sunscreen in Europe for over 10 years, and both contact and photocontact reactions have been reported; [Marks, p. 214] May cause irritation; [MSDSonline]
Biomedical References

Exposure Assessment

Vapor Pressure
1.4E-06 mm Hg

Adverse Effects

Skin Sensitizer
Yes
Dermatotoxin
PACD (photoallergic contact dermatitis)

Diseases, Processes, and Activities Linked to This Agent

Diseases

Occupational diseases associated with exposure to this agent: