Menthyl Anthranilate
Title: Menthyl Anthranilate
CAS Registry Number: 134-09-8
CAS Name: 5-Methyl-2-(1-methylethyl)cyclohexanol 2-aminobenzoate
Additional Names: anthranilic acid p-menth-3-yl ester; menthyl o-aminobenzoate; meradimate
Trademarks: Neo Heliopan MA (Symrise)
Molecular Formula: C17H25NO2
Molecular Weight: 275.39
Percent Composition: C 74.14%, H 9.15%, N 5.09%, O 11.62%
Literature References: UV-A absorber in cosmetics and sunscreens. Prepn: H. G. Rule, W. E. MacGillivray, J. Chem. Soc. 1929, 401; M. S. Carpenter, US 2170185 (1939 to Givaudan-Delawanna). Photophysical properties and use as sunscreen: A. Beeby, A. E. Jones, Photochem. Photobiol. 72, 10 (2000). Photostability study: O. Ozer et al., Cosmet. Toiletries 116, 67 (2001). Review of sunscreen formulations: K. Klein, H. A. Finkelmeier, ibid. 105, 75-77 (1990).
Properties: Colorless or pale yellow oil with distinct bluish fluorescence, bp3 177-179° (Carpenter). Also reported as mp 62.5-63.5°; bp0.33 156° (Rule, MacGillivray). d35 1.037. Sol in oil. Dissolves readily in alcohol, dilute aq acids. uv max (ethanol): 220, 249, 340 nm. Fluorescence emission max (ethanol): 405 nm.
Melting point: mp 62.5-63.5°
Boiling point: bp3 177-179° (Carpenter); bp0.33 156° (Rule, MacGillivray)
Absorption maximum: uv max (ethanol): 220, 249, 340 nm
Density: d35 1.037
Therap-Cat: Ultraviolet screen.
Keywords: Ultraviolet Screen.

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