Avobenzone

Avobenzone

Paramètre Spécifications
Nom du produit Avobenzone
Numéro CAS 70356-09-1
Formule moléculaire C20H22O3
Poids moléculaire 310.39 g/mol
Apparence Off-white to pale yellow crystalline powder
Essai (HPLC) ≥99,01 TP3T
Solubilité Soluble in most organic solvents; practically insoluble in water
Colis 25 kg fiber drum with double PE liner
Spécifications 99%

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Avobenzone Structure

Synonymes : Butyl methoxydibenzoylmethane, 1-(4-tert-Butylphenyl)-3-(4-methoxyphenyl)propane-1,3-dione, 4-tert-Butyl-4′-methoxydibenzoylmethane, BMDBM, Avobenzone, Parsol 1789, Eusolex 9020

Avobenzone has become the benchmark UVA filter in modern sun care, driven by tightening global regulations and consumer demand for broad-spectrum protection. Formulators rely on it because it delivers reliable UVA coverage across a wide range of emollients and spray systems, and it remains one of the few organic filters approved in both the US and EU.

Chemically, avobenzone is a dibenzoylmethane derivative—specifically 1-(4-tert-butylphenyl)-3-(4-methoxyphenyl)propane-1,3-dione. The molecule exists predominantly in its enol form, a configuration that absorbs strongly in the UVA region (320–400 nm). It is a synthetic compound produced through a multi-step organic synthesis, not a botanical extract, and is supplied as a high-purity crystalline solid.

Our avobenzone is standardized to ≥99.0% by HPLC, a purity level that minimizes the risk of photodegradation and color drift in finished formulas. It is compatible with a broad range of UV filters, including octocrylene and ethylhexyl methoxycinnamate, and is suitable for O/W and W/O emulsions, anhydrous gels, and spray formulations.

Présentation et composition du produit

Avobenzone is a single, well-defined organic molecule. Its photostability can be enhanced by pairing with triplet-state quenchers such as octocrylene or with film-formers that reduce its mobility in the formula. The enol tautomer is the active UV-absorbing species; keto-enol equilibrium shifts with solvent polarity and pH.

Because avobenzone is oil-soluble and essentially water-insoluble, it is typically incorporated into the oil phase during emulsification. Heating above 80°C should be avoided to prevent degradation, and chelating agents are often added to protect against metal-ion-induced color changes.

Applications & Product Lines

  • Sun care: Primary UVA filter in broad-spectrum sunscreens, daily moisturizers with SPF, and after-sun products.
  • Color cosmetics: Used in foundations, tinted creams, and lip products where UVA protection is desired.
  • Skin care: Incorporated into anti-aging and brightening formulas to help prevent UVA-induced photoaging.
  • Hair care: Added to leave-in sprays and conditioners to protect hair color and keratin from UV damage.
  • Technical applications: Employed as a UV stabilizer in industrial coatings and plastics where UVA resistance is required.

Quality Control Standards

Test Item Spécifications
Identification IR and UV spectra conform to reference
Perte au séchage ≤ 0,51 TP3T
Résidu au feu ≤ 0,11 TP3T
Métaux lourds ≤ 10 ppm
Organic Impurities ≤0.5% total
Limites microbiologiques Total aerobic count ≤100 CFU/g; absence of specified pathogens

Bulk Packaging & Supply

  • Emballage: 25 kg fiber drum with double PE liner; custom packaging available on request.
  • Quantité minimale de commande: 1 kg for sample orders; 25 kg for bulk orders.
  • Délai de livraison: 3-5 business days for stock items.
  • Documentation: COA, MSDS, TDS provided with every shipment.

Foire aux questions

What is the minimum order quantity?

Our MOQ is 1 kg for sample evaluation and 25 kg for bulk orders. Larger quantities can be quoted upon request.

How long does delivery take?

For stock items, we ship within 3-5 business days after order confirmation.

Do you provide a COA and samples?

Yes, a COA is available for each batch, and we can send samples for your testing. Documentation is provided within 1-2 days of your request.

Contact & Ordering Information

send us your specification for a quotation.

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Room,5-0203, Unit 5, Beiyuanmen Street,Xi'an,Shaanxi,China

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