4,4'-Dihydroxybenzophenone

4,4'-Dihydroxybenzophenone

Names
Other names Benzophenone, 4,4’dihydroxy-(7Cl,8Cl); 4,4’-dihydroxydiphenyl ketone; Bis(4-hydroxyphenyl) ketone; HBP; HBP (ketone); NSC
Identifiers
CAS Number	611-99-4
ChEMBL	ChEMBL194859
ChemSpider	62365
DrugBank	DB07635
Jmol interactive 3D	Image
KEGG	C14220
InChI InChI=1S/C13H10O3/c14-11-5-1-9(2-6-11)13(16)10-3-7-12(15)8-4-10/h1-8,14-15H Key: RXNYJUSEXLAVNQ-UHFFFAOYSA-N InChI=1/C13H10O3/c14-11-5-1-9(2-6-11)13(16)10-3-7-12(15)8-4-10/h1-8,14-15H Key: RXNYJUSEXLAVNQ-UHFFFAOYAR
SMILES O=C(c1ccc(O)cc1)c2ccc(O)cc2
Properties
Chemical formula	C13H10O3
Molar mass	214.22 g/mol
Appearance	Off white/yellow solid
Density	1.302g/cm3
Melting point	213 to 215 °C (415 to 419 °F; 486 to 488 K)
Boiling point	444.8 °C (832.6 °F; 718.0 K) @760mmHg
Solubility in water	0.45 g/L
Hazards
Safety data sheet	MSDS by Fisher Scientific
Flash point	237 °C (459 °F; 510 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

4,4'-Dihydroxybenzophenone is an organic compound with the formula (HOC₆H₄)₂CO. This off-white solid is a precursor to or a degradation product of diverse commercial materials. It is a potential endocrine disruptor.^[1]

Synthesis

4,4'-Dihydroxybenzophenone is prepared by the rearrangement of p-hydroxyphenylbenzoate:

HOC₆H₄CO₂C₆H₅ → (HOC₆H₄)₂CO

Alternatively, p-hydroxybenzoic acid can be converted to p-acetoxybenzoyl chloride. This acid chloride reacts with phenol to give, after deacetylation, 4,4'-dihydroxybenzophenone.

Uses

The main application of 4,4'-dihydroxybenzophenone is as a UV light stabilizer. It and its derivatives are found in cosmetics, plastics, films, adhesives and coatings, optical fiber, and printed circuit boards. It is the precursor to certain polycarbonate polymers.^[2]

References

1. Eddine, Ali Nasser; von Kries, Jens P.; Podust, Mikhail V.; Warrier, Thulasi; Kaufmann, Stefan H. E.; Podust, Larissa M. "X-ray Structure of 4, 4 '- Dihydroxybenzophenone Mimicking Sterol Substrate in the Active Site of Sterol 14a -Demethylase (CYP51)" Journal of Biological Chemistry (2008), 283, pp. 15152-15159. doi:10.1074/jbc.M801145200
2. David Parker, Jan Bussink, Hendrik T. van de Grampe, Gary W. Wheatley, Ernst-Ulrich Dorf, Edgar Ostlinning, Klaus Reinking "Polymers, High-Temperature" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2002.doi:10.1002/14356007.a21_449