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Free lookupCAS 131-57-7

2-Hydroxy-4-methoxybenzophenone

CAS 131-57-7 · PubChem CID 4632 · C14H12O3 · 228.24 g/mol

Also called oxybenzone, 2-HYDROXY-4-METHOXYBENZOPHENONE, Benzophenone-3, 2-Benzoyl-5-methoxyphenol, Advastab 45.

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Opens the builder with 2-Hydroxy-4-methoxybenzophenone loaded
as component 1 at 100%.

01GHS classification
GHS pictogram: Irritant
Irritant
GHS pictogram: Environmental Hazard
Environmental Hazard

Signal word

Warning

European Chemicals Agency (ECHA)fetched 2026-08-28

Precautionary statement codes

P261, P264, P264+P265, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P391, P403+P233, P405, and P501

European Chemicals Agency (ECHA)fetched 2026-08-28

H315Causes skin irritation

European Chemicals Agency (ECHA)fetched 2026-08-28

H319Causes serious eye irritation

European Chemicals Agency (ECHA)fetched 2026-08-28

H335May cause respiratory irritation

European Chemicals Agency (ECHA)fetched 2026-08-28

H400Very toxic to aquatic life

European Chemicals Agency (ECHA)fetched 2026-08-28

H411Toxic to aquatic life with long lasting effects

European Chemicals Agency (ECHA)fetched 2026-08-28

02Physical and chemical properties
Appearance

2-hydroxy-4-methoxybenzophenone appears as white to off-white or light yellow powder. (NTP, 1992)

CAMEO Chemicalsfetched 2026-08-28

Odour

Weak odor

Hazardous Substances Data Bank (HSDB)fetched 2026-08-28

Melting point

65.5 °C

Hazardous Substances Data Bank (HSDB)fetched 2026-08-28

Boiling point

302 to 320 °F at 5 mmHg (NTP, 1992)

CAMEO Chemicalsfetched 2026-08-28

Flash point

100 °C (212 °F) - closed cup

Hazardous Substances Data Bank (HSDB)fetched 2026-08-28

Auto-ignition temperature

no value printed

unsourced — inference candidate

Flammable limits

no value printed

unsourced — inference candidate

Vapour pressure

0.00000142 [mmHg]

Haz-Map, Information on Hazardous Chemicals and Occupational Diseasesfetched 2026-08-28

Relative density

1.32 at 25 °C

Hazardous Substances Data Bank (HSDB)fetched 2026-08-28

Solubility in water

no value printed

unsourced — inference candidate

Partition coefficient, log Kow

no value printed

unsourced — inference candidate

Viscosity

no value printed

unsourced — inference candidate

03Toxicological information

No published acute toxicity value was found for this substance in the sources we read. On a document, Section 11 would print unsourced — inference candidate rather than an estimate.

This page is the evidence. The document is the deliverable.

Everything above is free and stays free. For $5 the same sourced values are assembled into a 16-section safety data sheet and a print-ready GHS label carrying your company details in Section 1.

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What we read

European Chemicals Agency (ECHA), Hazardous Substances Data Bank (HSDB), CAMEO Chemicals, Haz-Map, Information on Hazardous Chemicals and Occupational Diseases.

11 sourced records for this substance are in the ledger. Values dated more than 30 days ago are re-fetched on the next document.