Butyl Methoxydibenzoylmethane

Functions
UV absorber
Sunscreen
Light Stabilizer
UV filters
CAS Number(s)
70356-09-1
EINECS number(s)
274-581-6
FDA UNII
G63QQF2NOX
INCI name
Butyl Methoxydibenzoylmethane

Butyl Methoxydibenzoylmethane is a pale yellow powder with a weakly aromatic characteristic odor used in skin and sun care applications as a UV-A absorber. It is utilized in association with recognized UV-B absorbers such as OMC in everyday cosmetic preparations like creams and lotions.

Butyl Methoxydibenzoylmethane can also be used in sunscreen preparations, where an adequate concentration of both filters provides excellent sun protection by blocking UV-A/UV-B radiation. It provides broad-spectrum protection for the skin and is widely used in sun care preparations.

In addition, Butyl Methoxydibenzoylmethane is used for the formulation of protective hair care preparations. In some cases, it is used as a photo-antioxidant to protect products from photo-oxidation.

It is insoluble in most standard solubilizers or bases, including water, glycerin, mineral oil, and alcohol; soluble in isopropyl myristate and isopropyl adipate. Butyl Methoxydibenzoylmethane is a recommended ingredient for medicated skin care and protective skin tone preparations, makeup creams and lotions, hand and face creams, moisturizing creams, and anti-aging formulations.
See also
Synonyms
1-[4-(1,1-Dimethylethyl)phenyl]-3-(4-methoxyphenyl)propane-1,3-dione
GalSORB Avobenzone
Avobenzone

UVA radiation (wavelengths between 320nm and 400nm) penetrates down to the dermal layers of the skin. It stimulates tanning and pigmentation, but is also related to skin aging.

Furthermore, UV-A may act indirectly by creating free radicals and reactive oxygen species. In consequence, an efficient sunscreen should not only prevent sunburn (UV-B rays) but also minimize the accumulation of all radiation-induced damage in the skin, which eventually enhances the risk of fatal alterations like skin aging.

So sun care or daily care products should not only contain a UV-B filter but also include an important add-on for UV-A protection, like Butyl Methoxydibenzoylmethane, to ensure comprehensive and safe protection against skin damage.

Unfortunately, it has been detected in various parts of the ocean due to its bioaccumulation potential. Accumulation can leave possible environmental effects like coral bleaching.
Changed

References

Ethylhexyl methoxycinnamate and butyl methoxydibenzoylmethane: Toxicological effects on marine biota and human concerns
Author(s):
, , ,
PMID:
34101210
DOI:
10.1002/jat.4210
Sunscreens part 2: Regulation and safety
Author(s):
, , , ,
PMID:
38777185
DOI:
10.1016/j.jaad.2024.02.066
Sunscreen Safety and Efficacy for the Prevention of Cutaneous Neoplasm
Author(s):
,
PMID:
38633930
DOI:
10.7759/cureus.56369
Efficacy of a sunscreen containing butyl methoxydibenzoylmethane against ultraviolet A radiation in photosensitized subjects
Author(s):
, , , , ,
PMID:
3760274
DOI:
10.1016/s0190-9622(86)70199-0