Diethylamino hydroxybenzoyl hexyl benzoate
IUPAC name	Hexyl 2-[4-(diethylamino)-2-hydroxybenzoyl]benzoate
Other names	Uvinul A Plus
Identifiers
CAS number	302776-68-7
SMILES	CCCCCCOC(=O)C1=CC=CC=C1C(=O)C2=C(C(=CC=C2)N(CC)CC)O
Properties
Molecular formula	C24H31NO4
Molar mass	397.51 g/mol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Diethylamino hydroxybenzoyl hexyl benzoate (INCI) is an organic compound used in sunscreens to absorb UVA radiation. It is marketed as Uvinul A Plus by BASF. 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]

DHHB has been approved for the use in sunscreens in the European Union since 2005 with a maximum of 10%.^[4][5] It's also approved in South America, Mexico, Japan and Taiwan.^[6] In the United States it can be used for product protection.^[7]

[edit] References

1. ^ Vielhaber G, Grether-Beck S, Koch O, Johncock W, Krutmann J (March 2006). "Sunscreens with an absorption maximum of > or =360 nm provide optimal protection against UVA1-induced expression of matrix metalloproteinase-1, interleukin-1, and interleukin-6 in human dermal fibroblasts". Photochem Photobiol Sci 5(3): 275–82. doi:10.1039/b516702g. PMID 16520862. 
2. ^ UV Absorber Portfolio Performance Data and Regulatory Status, cosmetics.basf.de
3. ^ http://sciencelinks.jp/j-east/article/200216/000020021602A0553728.php
4. ^ http://www.corporate.basf.com/en/investor/strategie/kunden/uvinul.htm
5. ^ http://eur-lex.europa.eu/LexUriServ/site/en/consleg/1976/L/01976L0768-20060809-en.pdf
6. ^ http://www.cosmetics.basf.de/pdf/publications/Uvinul_A_Plus_Broschuere.pdf
7. ^ http://www2.basf.us/corporate/news2004/02272004b.htm

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