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UV filters

Avobenzone

Also known as Parsol 1789, Butyl methoxydibenzoylmethane, Escalol 517

CAS 70356-09-1Formula C20H22O3Molar mass 310.39 g/molEC 274-581-6
158 suppliers listed Drug substance
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Avobenzone chemical structure, C20H22O3, CAS 70356-09-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Crystals from methanol
Melting point
83.5 °C
Solubility
Water-insoluble, soluble in isopropanol, decyl oleate, capric/caprylic triglyceride, cas…
HS code
291450
Category
UV filters
Illustrative photo, drums, an IBC tote and sacks in a chemical warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Avobenzone?

Plain description, key identifiers and synonyms

Avobenzone is a member of dihydrochalcones.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-(4-tert-butylphenyl)-3-(4-methoxyphenyl)propane-1,3-dione
CAS number
70356-09-1 CAS number cross-checkedOther or deprecated CAS: 87075-14-7
EC number
274-581-6
Molecular formula
C20H22O3
UNII
G63QQF2NOX
MDL number
MFCD00210252
INCI name
BUTYL METHOXYDIBENZOYLMETHANE
InChIKey
XNEFYCZVKIDDMS-UHFFFAOYSA-N
InChI
InChI=1S/C20H22O3/c1-20(2,3)16-9-5-14(6-10-16)18(21)13-19(22)15-7-11-17(23-4)12-8-15/h5-12H,13H2,1-4H3
SMILES (canonical and isomeric)
CC(C)(C)C1=CC=C(C=C1)C(=O)CC(=O)C2=CC=C(C=C2)OC

Synonyms

  • 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
  • help me
  • Ponds Clarant B3
  • Ponds Vao-B3
  • Duane Reade Sunscreen
  • Dynamic Skin Recovery
  • Exchange Select Sunscreen
  • Duane Reade Sport Sunscreen
  • Anti-Dark Moisturizing Cream
  • Duane Reade Sports Sunscreen
Show all 38 synonyms
  • Exchange Select Baby Sunscreen
  • Exchange Select Kids Sunscreen
  • Duane Reade Oil Free Sunscreen
  • Duane Reade Sunscreen SPF 30
  • Duane Reade Sunscreen SPF 50
  • Duane Reade Sunscreen SPF 70
  • Dynamic Skin Recovery SPF 50
  • Exchange Select Sunscreen SPF 50
  • Duane Reade Baby SunscreenSPF 50
  • Duane Reade Sport Sunscreen SPF 50
  • Leaders sunbuddy all over sun
  • Duane Reade Sports Sunscreen SPF 30
  • Duane Reade Sports Sunscreen SPF 50

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Crystals from methanolexp.
Odour
Slightly aromaticexp.
Melting point
83.5 °Cexp.
Solubility
Water-insoluble, soluble in isopropanol, decyl oleate, capric/caprylic triglyceride, castor oil.exp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
310.39 g/molcalc.
Exact mass
310.1569 Dacalc.
LogP (octanol/water)
4.45calc.
Topological polar surface area
43.37 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
5calc.
Heavy atoms
23calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.3calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C(CC(=O)c1ccccc1)c1ccccc1

O=C(CC(=O)c1ccccc1)c1ccccc1

2 rings, 17 atoms, the Dibenzoylmethane ring system.

308 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS classification
Hazard pictograms

Hazard statements

  • H413May cause long lasting harmful effects to aquatic life.
Precautionary statements (2)
  • P273Avoid release to the environment.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Avobenzone suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 158 suppliers
30 of 30 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

158 suppliers in 22 countries

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Avobenzone price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

UV-A blocker.

The Approved Drug Products with Therapeutic Equivalence Evaluations List identifies currently marketed over-the-counter drug products, including avobenzone, approved on the basis of safety and effectiveness by FDA under sections 505 of the Federal Food, Drug, and Cosmetic Act.

Used as a UVA-filter in sun care products, baby sun care products, daily sun protection, decorative cosmetics, allowed use level in USA is 0.5-4%.

Provides broad-spectrum protection in skin and sun-care preparations, can be used for the formulation of protective hair-care, medicated skin-care and protective skin-tone preparations, Recommended use levels are 2-3% in sunscreen products and 1-2% in everyday skin-care products.

Industrial uses: Photosensitive agent, Fragrance.

Consumer uses: Photosensitive agent, Fragrance.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name BUTYL METHOXYDIBENZOYLMETHANE(light stabilizer, uv absorber, uv filter)

Pharmacological actions

  • Sunscreening Agents

Roles

  • antineoplastic agent
  • pharmaceutical

Functional uses

  • Fragrance
  • UV stabilizer

Cosmetic functions

  • Light stabilizer
  • UV absorber
  • UV filter

Pharmacology

Avobenzone is a sunscreen blocker. Avobenzone is a topical, broad range UV protector and blocks UVA I, UVA II, and UVB wavelengths, thereby limiting the impact of UV rays on skin. (NCI05)

How it is made

K.-F. De Polo, Germany 2945125, idem, United States of America 4387089 (1980, 1983 both to Givaudan)

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex VI, allowed UV filter
    Name: Butyl Methoxydibenzoylmethane, Ref no: 8, Annex ref: VI/8
  • Active ingredient in FDA approved drug labels

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Avobenzone is traded under.

HS 2914.50Indicative HS code

Ketone-phenols and ketones with other oxygen function

World exports in 2024
$438M
+10.9% vs 2023, imports $420M
2019 to 2024
Top exporters
  1. China50.5%
  2. India * partner reported11.6%
  3. United States11.3%
Top importers
  1. United States20.8%
  2. Germany10.0%
  3. Netherlands8.6%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Avobenzone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Avobenzone, based on the data on this page

What is Avobenzone?

Avobenzone is a member of dihydrochalcones.

What is the CAS number of Avobenzone?

The CAS registry number of Avobenzone is 70356-09-1. Other or deprecated CAS numbers: 87075-14-7.

What is the molecular formula and weight of Avobenzone?

The molecular formula of Avobenzone is C20H22O3 and its molar mass is 310.39 g/mol.

What is Avobenzone used for?

UV-A blocker. The Approved Drug Products with Therapeutic Equivalence Evaluations List identifies currently marketed over-the-counter drug products, including avobenzone, approved on the basis of safety and effectiveness by FDA under sections 505 of the Federal Food, Drug, and Cosmetic Act.

Is Avobenzone hazardous?

Avobenzone has a GHS hazard classification. Main hazards: may cause long lasting harmful effects to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Avobenzone?

Avobenzone is usually classified under HS code 291450 (Ketone-phenols and ketones with other oxygen function). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Avobenzone?

CompoundList lists 158 suppliers of Avobenzone in China, India, United States, United Kingdom and 18 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Avobenzone in India?

28 suppliers in India list Avobenzone on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Avobenzone?

Suppliers quote Avobenzone on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Avobenzone

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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