Avobenzone
| 매개변수 | 사양 |
|---|---|
| 제품명 | Avobenzone |
| CAS 번호 | 70356-09-1 |
| 분자식 | C20H22O3 |
| 분자량 | 310.39 g/mol |
| 외관 | Off-white to pale yellow crystalline powder |
| 분석법 (HPLC) | ≥99.0% |
| 용해도 | Soluble in most organic solvents; practically insoluble in water |
| 패키지 | 25 kg fiber drum with double PE liner |
| 사양 | 99% |
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동의어: 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.
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.
| Test Item | 사양 |
|---|---|
| 식별 | IR and UV spectra conform to reference |
| 건조 손실 | ≤0.5% |
| 소각 잔류물 | ≤0.1% |
| 중금속 | ≤10 ppm |
| Organic Impurities | ≤0.5% total |
| Microbial Limits | Total aerobic count ≤100 CFU/g; absence of specified pathogens |
Our MOQ is 1 kg for sample evaluation and 25 kg for bulk orders. Larger quantities can be quoted upon request.
For stock items, we ship within 3-5 business days after order confirmation.
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.
send us your specification for a quotation.
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