Title: Drometrizole
CAS Registry Number: 2440-22-4
CAS Name: 2-(2H-Benzotriazol-2-yl)-4-methylphenol
Additional Names: 2-(2H-benzotriazol-2-yl)-p-cresol; 2-(2¢-hydroxy-5¢-methylphenyl)benzotriazole
Trademarks: Tinuvin P (Ciba)
Molecular Formula: C13H11N3O
Molecular Weight: 225.25
Percent Composition: C 69.32%, H 4.92%, N 18.65%, O 7.10%
Literature References: Prepn: Heller et al., US 3004896; US 3189615 (1961, 1965 to Geigy). Stabilization mechanism in acrylonitrile-butadiene-styrene (ABS) latex: J. B. Adeniyi, J. Polym. Mater. 3, 25 (1986). HPLC determn in plastic: B. Niklasson, B. Björkner, Contact Dermatitis 21, 330 (1989). Review of uses: Dunn, Fogg, J. Appl. Polym. Sci. 2, 367 (1959); of toxicology and cosmetic use: CTFA, J. Am. Coll. Toxicol. 5, 455-470 (1986).
Properties: Minute crystals, mp 131-133°. bp10 225°. Sol in ethyl acetate, acetone, caprolactam solns, dioctylphthalate, oleyl alcohol, hot petrolatum. Stable to conditions and chemicals used in polymerization or compounding of plastics.
Melting point: mp 131-133°
Boiling point: bp10 225°
Use: An ultraviolet light absorber for stabilizing plastics and other organic materials against discoloration and deterioration.
Therap-Cat: Ultraviolet screen.
Keywords: Ultraviolet Screen. |