Dioxybenzone

Names

Preferred IUPAC name (2-Hydroxy-4-methoxyphenyl)(2-hydroxyphenyl)methanone

Other names Dioxybenzone benzophenone-8

Identifiers

CAS NumberN

3D model (JSmol)

ChEMBLN

ChemSpiderY

ECHA InfoCard

KEGGY

PubChem CID

UNIIY

CompTox Dashboard (EPA)

InChI InChI=1S/C14H12O4/c1-18-9-6-7-11(13(16)8-9)14(17)10-4-2-3-5-12(10)15/h2-8,15-16H,1H3YKey:MEZZCSHVIGVWFI-UHFFFAOYSA-NYInChI=1/C14H12O4/c1-18-9-6-7-11(13(16)8-9)14(17)10-4-2-3-5-12(10)15/h2-8,15-16H,1H3Key:MEZZCSHVIGVWFI-UHFFFAOYAR

SMILES O=C(C2=CC=CC=C2O)C1=C(O)C=C(OC)C=C1O=C(c1ccc(OC)cc1O)c2ccccc2O

Properties

Chemical formulaC14H12O4

Molar mass244.25 g/mol

Density1.38 g/cm3

Melting point68°C (154°F; 341K)

Boiling point170 to 175°C (338 to 347°F; 443 to 448K)

Except where otherwise noted, data are given for materials in their standard state (at 25°C [77°F], 100kPa). Nverify(what isYN?) Infobox references

Dioxybenzone (benzophenone-8) is an organic compound used in sunscreen to block UVB and short-wave UVA (ultraviolet) rays. It is a derivative of benzophenone. It is a yellow powder with a melting point of 68 °C. It is insoluble in water, but moderately soluble in ethanol and isopropanol.