4,4'-Dihydroxybenzophenone

4,4′-Dihydroxybenzophenone
Names
	Preferred IUPAC name Bis(4-hydroxyphenyl)methanone
	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 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:34365;
ChEMBL	ChEMBL194859 ;
ChemSpider	62365 ;
DrugBank	DB07635 ;
ECHA InfoCard	100.009.354
EC Number	210-288-1;
KEGG	C14220 ;
PubChem CID	69150;
UNII	HZR7D31SBY;
CompTox Dashboard (EPA)	DTXSID1022425 ;
	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
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H317, H319, H335
Precautionary statements	P261, P264, P271, P272, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P333+P313, P337+P313, P362, P363, P403+P233, P405, P501
Flash point	237 °C (459 °F; 510 K)
Safety data sheet (SDS)	MSDS by Fisher Scientific
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) 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

^ Eddine, Ali Nasser; von Kries, Jens P.; Podust, Mikhail V.; Warrier, Thulasi; Kaufmann, Stefan H. E.; Podust, Larissa M. (2008). "X-ray structure of 4,4′-dihydroxybenzophenone mimicking sterol substrate in the active site of sterol 14α-demethylase (CYP51)". Journal of Biological Chemistry. 283 (22): 15152–15159. doi:10.1074/jbc.M801145200. PMC 2397474. PMID 18367444. S2CID 22025443.
^ 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

[1] Eddine, Ali Nasser; von Kries, Jens P.; Podust, Mikhail V.; Warrier, Thulasi; Kaufmann, Stefan H. E.; Podust, Larissa M. (2008). "X-ray structure of 4,4′-dihydroxybenzophenone mimicking sterol substrate in the active site of sterol 14α-demethylase (CYP51)". Journal of Biological Chemistry. 283 (22): 15152–15159. doi:10.1074/jbc.M801145200. PMC 2397474. PMID 18367444. S2CID 22025443.

[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

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