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Diethylamino hydroxybenzoyl hexyl benzoate

Diethylamino hydroxybenzoyl hexyl benzoate (INCI) is an organic compound used in sunscreens to absorb UVA radiation. It is marketed as Parsol DHHB by DSM and as Uvinul A Plus by BASF. DHHB has an absorption maximum of 354 nm.{{cite journal DHHB has excellent photostability and compatibility with other UV absorbers and other cosmetic ingredients.

The European Commission Scientific Committee on Consumer Safety (SCCS) has expressed concerns about di-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. 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.

Synthesis

DHHB is produced by a reaction between 3-hydroxy-N,N-diethylaniline and phthalic anhydride, followed by esterification with 1-hexanol.

:[[File:DHHB-Synthese.svg]]

Regulation

DHHB has been approved for the use in sunscreens in the European Union since 2005 with a maximum concentration of 10% and is also approved in South America, Mexico, Japan and Taiwan. In the United States it can be used for product protection.

References

References

  1. [http://www.cosmetics.basf.de/(ofnv5uj3xy3zfy45hgjburu3)/pdf/Overview%20UV%20Absorber%20Portfolio_Performance%20Data%20and%20Regulatory%20Status.PDF UV Absorber Portfolio Performance Data and Regulatory Status] {{Webarchive. link. (2010-10-11 , cosmetics.basf.de)
  2. "Science Links Japan | New raw materials and technologies for cosmetics. Functions and development of new UVA absorber".
  3. "SCCS - Scientific Advice on the safety of Diethylamino Hydroxybenzoyl Hexyl Benzoate - DHHB – S83 - European Commission".
  4. "Candidate List of substances of very high concern for Authorisation - ECHA".
  5. "BASF Group: Uvinul® A Plus - for safer sunbathing".
  6. "Archived copy".
  7. "Archived copy".
  8. "WebPublisher HTML Template".
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

sunscreening-agents benzoate-esters phenols benzophenones anilines diethylamino-compounds
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