 | |
| Names | |
|---|---|
| Preferred IUPAC name Hexyl 2-[4-(diethylamino)-2-hydroxybenzoyl]benzoate | |
| Other names Uvinul A Plus | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider |
|
| ECHA InfoCard | 100.103.916 |
| UNII | |
| |
| |
| Properties | |
| C24H31NO4 | |
| Molar mass | 397.515 g·mol−1 |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Diethylamino hydroxybenzoyl hexyl benzoate (INCI) is anorganic compound used insunscreens to absorbUVA radiation. It is marketed asParsol DHHB byDSM and asUvinul A Plus byBASF. DHHB has an absorption maximum of 354 nm.[1][2]DHHB has excellent photostability and compatibility with other UV absorbers and other cosmetic ingredients.[3]
The European CommissionScientific Committee on Consumer Safety (SCCS) has expressed concerns aboutdi-n-hexyl phthalate contamination from manufacture and recommended a maximum safe level of 260 parts per million in DHHB for suncreams. They further recommended that a trace level below 1 ppm should be the target for manufacturers as the contamination is avoidable.[4] Although DHHB is a safe sunscreen ingredient, di-n-hexyl phtalate has been on the European Chemicals Agency list of Substances of Very High Concern since 2013.[5]
DHHB is produced by a reaction between 3-hydroxy-N,N-diethylaniline andphthalic anhydride, followed byesterification with1-hexanol.
DHHB has been approved for the use in sunscreens in the European Union since 2005 with a maximum concentration of 10%[6][7] and is also approved in South America, Mexico, Japan and Taiwan.[8] In the United States it can be used for product protection.[9]
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