Specialty Additives Available — Bulk Only

Avobenzone (Butyl Methoxydibenzoylmethane, BMDBM)

CAS 70356-09-1 · Formula C20H22O3 · MW 310.4 g/mol

The dominant UV-A organic filter specified in broad-spectrum sun-care formulations. It is used as a UV-A filter and absorber in sunscreen and sun-care products and as a cosmetic UV filter.

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HS Code
2914.50
At a Glance
Material Family
Specialty Additives
Record Type
Pure compound
Primary Role
UV Protection
Solubility
Solubility at 20 °C: glycerin, 0.1% w/w; ethanol and isopropanol, 2% w/w
Functional Roles
BUTYL METHOXYDIBENZOYLMETHANE
LIGHT STABILIZERUV ABSORBERUV FILTER
Applications & Use Cases
  • Sunscreen formulations: UV-A filter in sun-care products
  • Daily-wear cosmetics: UV absorber in skin-care and color cosmetics
  • Hair care: UV absorber in protective hair formulations
Physical Properties
Melting Point
83.5 °C
Solubility
Solubility at 20 °C: glycerin, 0.1% w/w; ethanol and isopropanol, 2% w/w
Vapor Pressure
0.0000014
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2914 . 50
Chapter 29
Organic chemicals
Heading 29.14
Internationally harmonized (WCO HS)
Subheading 2914.50
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
70356-09-1
Molecular Formula
C20H22O3
Molecular Weight
310.4 g/mol
IUPAC Name
1-(4-tert-butylphenyl)-3-(4-methoxyphenyl)propane-1,3-dione
INCI Name
BUTYL METHOXYDIBENZOYLMETHANE
PubChem CID
InChI Key
XNEFYCZVKIDDMS-UHFFFAOYSA-N
Synonyms & Trade Names
Avobenzone Parsol 1789 Butyl methoxydibenzoylmethane Escalol 517 Eusolex 9020 Avobenzona NeoHeliopan 357 Avobenzonum 4-TERT-BUTYL-4'-METHOXYDIBENZOYLMETHANE 1,3-Propanedione, 1-[4-(1,1-dimethylethyl)phenyl]-3-(4-methoxyphenyl)- 1-(p-tert-Butylphenyl)-3-(p-methoxyphenyl)-1,3-propanedione 1,3-Propanedione, 1-(4-(1,1-dimethylethyl)phenyl)-3-(4-methoxyphenyl)- 1-(4-(1,1-Dimethylethyl)phenyl)-3-(4-methoxyphenyl)-1,3-propanedione 1-[4-(1,1-dimethylethyl)phenyl]-3-(4-methoxyphenyl)-1,3-propanedione parsol-1789 BMDBM cpd butyl-methoxydibenzoylmethane
Full Description

Avobenzone, butyl methoxydibenzoylmethane (CAS 70356-09-1). It is used as a UV-A filter and absorber in sunscreen and sun-care products and as a cosmetic UV filter.

Frequently Asked Questions

What is avobenzone used for?

Avobenzone (butyl methoxydibenzoylmethane, CAS 70356-09-1) is an organic UV-A filter and absorber used in sunscreen and sun-care formulations. It is also incorporated into daily-wear cosmetics and protective hair-care products as a UV absorber. RawSource supplies it in bulk to personal-care manufacturers.

What is the chemical name for avobenzone?

The chemical name for avobenzone is butyl methoxydibenzoylmethane, with CAS 70356-09-1 and molecular formula C20H22O3. It is a dibenzoylmethane-derivative UV-A filter. RawSource provides full identity documentation with each order.

What is the difference between avobenzone and oxybenzone?

Avobenzone and oxybenzone are both organic UV filters but cover different ranges: avobenzone is primarily a UV-A absorber, while oxybenzone absorbs across UV-B and short UV-A. They are distinct molecules with different CAS numbers and are often used in combination in broad-spectrum formulations.

What is the solubility of avobenzone?

Avobenzone is oil-soluble and is typically incorporated into the oil phase of sunscreen emulsions; it has limited water solubility. Solubility behavior drives its formulation into emollient and ester carriers. Consult the SDS and technical data for handling and solvent compatibility details.

How is bulk avobenzone packaged and quoted?

RawSource supplies avobenzone in bulk for sun-care and cosmetic formulators, classified under HS 2914.50. Pricing is quote-based and depends on volume, grade, and delivery terms. Submit a bulk RFQ with your target quantity and specification for current pricing and lead time.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.