Avobenzone
Also known as: Butyl methoxydibenzoylmethane, 1-(4-tert-Butylphenyl)-3-(4-methoxyphenyl)-1,3-propanedione, 4-tert-Butyl-4'-methoxydibenzoylmethane, Parsol 1789, Eusolex 9020, 1-(4-(1,1-Dimethylethyl)phenyl)-3-(4-methoxyphenyl)-1,3-propanedione, 1-(4-Methoxyphenyl)-3-[4-(2-methyl-2-propanyl)phenyl]-1,3-propanedione
Avobenzone (CAS 70356-09-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C20H22O3 and a molecular weight of 310.387 g/mol. Key properties include a melting point of 81-84 °C, a boiling point of 463.6±35.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 203.1±26.0 °C. It is classified under GHS with signal word Warning and hazard statements H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 70356-09-1
- Jingsj CID
- J-8706-9
- Molecular Formula
- C20H22O3
- Molecular Weight
- 310.387 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 81-84 °C |
|---|---|
| Boiling Point | 463.6±35.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 203.1±26.0 °C |
| Exact Mass | 310.156891 |
| PSA | 43.37000 |
| LogP | 4.81 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.545 |
GHS Safety & Compliance
- H410 — Very toxic to aquatic life with long lasting effects
Activity & Biological Data
| Additional Information | [1]. Singh, P. and O.H. Nautiyal, Synthesis of Parsol [4-(1, 1-Dimethylethyl)-4'-methoxydibenzoylmethane)]. Asian Journal of Research in Chemistry, 2011. 4(11). |
|---|
Customs & Trade Information
| HS Code | 2909499000 |
|---|---|
| Summary | 2909499000. ether-alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Avobenzone?
The CAS number of Avobenzone is 70356-09-1.
What are the molecular formula and molecular weight of Avobenzone?
Avobenzone has molecular formula C20H22O3 and molecular weight 310.387 g/mol.
Is Avobenzone hazardous?
Avobenzone has GHS signal word Warning and hazard statements H410 — Very toxic to aquatic life with long lasting effects.
What are the upstream and downstream products of Avobenzone?
For Avobenzone, Upstream Products: Methyl 4-tert-butylbenzoate, 4'-Methoxyacetophenone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Avobenzone (CAS 70356-09-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8706-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.