Octabenzone

Octabenzone
Names

IUPAC name (2-hydroxy-4-octoxy-phenyl)-phenyl-methanone
Other names Benzophenone-12, Spectra-Sorb UV 531, MPI Milestab 81
Identifiers
CAS Registry Number	1843-05-6^Y
ChemSpider	15020^Y
InChI InChI=1S/C21H26O3/c1-2-3-4-5-6-10-15-24-18-13-14-19(20(22)16-18)21(23)17-11-8-7-9-12-17/h7-9,11-14,16,22H,2-6,10,15H2,1H3^Y Key: QUAMTGJKVDWJEQ-UHFFFAOYSA-N^Y InChI=1/C21H26O3/c1-2-3-4-5-6-10-15-24-18-13-14-19(20(22)16-18)21(23)17-11-8-7-9-12-17/h7-9,11-14,16,22H,2-6,10,15H2,1H3 Key: QUAMTGJKVDWJEQ-UHFFFAOYAM
Jmol-3D images	Image
KEGG	D00441^Y
MeSH	(2-hydroxy-4-(octyloxy)phenyl)phenylmethanone
PubChem	15797
SMILES O=C(c1ccc(OCCCCCCCC)cc1O)c2ccccc2
UNII	73P3618V2E^Y
Properties
Chemical formula	C₂₁H₂₆O₃
Molar mass	326.429 g/mol
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Y verify (what is: Y/N?)
Infobox references

Octabenzone (Spectra-Sorb UV 531, MPI Milestab 81) is a UV absorber/screener. It is used to protect polymers (e.g., polyethylene, polypropylene, polyvinylchloride) against damage by UV light.