Diphenyl sulfone

Diphenyl sulfone
Names
	Preferred IUPAC name 1,1′-Sulfonyldibenzene
	Other names Diphenyl sulphone
Identifiers
CAS Number	127-63-9 ;
3D model (JSmol)	Interactive image ;
ChEBI	CHEBI:78360 ;
ChemSpider	29117 ;
ECHA InfoCard	100.004.413
PubChem CID	31386 ;
UNII	V25W2CFS3M ;
CompTox Dashboard (EPA)	DTXSID6041892 ;
	InChI InChI=1S/C12H10O2S/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H Key: KZTYYGOKRVBIMI-UHFFFAOYSA-N; InChI=1/C12H10O2S/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H Key: KZTYYGOKRVBIMI-UHFFFAOYAU;
	SMILES O=S(=O)(c1ccccc1)c2ccccc2;
Properties
Chemical formula	C12H10O2S
Molar mass	218.27 g·mol−1
Melting point	123 °C (253 °F; 396 K)
Boiling point	379 °C (714 °F; 652 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Last updated June 25, 2025

Diphenyl sulfone is an organosulfur compound with the formula (C₆H₅)₂SO₂. It is a white solid that is soluble in organic solvents. It is used as a high temperature solvent. Such high temperature solvents are useful for processing highly rigid polymers, such as PEEK, which only dissolve in very hot solvents.^[1]

Diphenyl sulfone is produced by the sulfonation of benzene with sulfuric acid and oleum. For typical processes, benzenesulfonic acid is an intermediate.^[2] It is also produced from benzenesulfonyl chloride and benzene.^[3]

References

↑ Parker, David; Bussink, Jan; Van De Grampel, Hendrik T.; Wheatley, Gary W.; Dorf, Ernst-Ulrich; Ostlinning, Edgar; Reinking, Klaus; Schubert, Frank; Jünger, Oliver; Wagener, Reinhard (2012). "Polymers, High-Temperature". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a21_449.pub4. ISBN 978-3-527-30673-2.
↑ Otto Lindner, Lars Rodefeld "Benzenesulfonic Acids and Their Derivatives" in Ullmann's Encyclopedia of Industrial Chemistry 2005, Wiley-VCH, Weinheim. doi : 10.1002/14356007.a03_507
↑ Roger Adams, C. S. Marvel, H. T. Clarke, G. S. Babcock, and T. F. Murray (1921). "Benzenesulfonyl chloride". Organic Syntheses . 1: 21{{cite journal}}: CS1 maint: multiple names: authors list (link); Collected Volumes, vol. 1, p. 84.

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[Parker-1] Parker, David; Bussink, Jan; Van De Grampel, Hendrik T.; Wheatley, Gary W.; Dorf, Ernst-Ulrich; Ostlinning, Edgar; Reinking, Klaus; Schubert, Frank; Jünger, Oliver; Wagener, Reinhard (2012). "Polymers, High-Temperature". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a21_449.pub4. ISBN 978-3-527-30673-2.

[2] Otto Lindner, Lars Rodefeld "Benzenesulfonic Acids and Their Derivatives" in Ullmann's Encyclopedia of Industrial Chemistry 2005, Wiley-VCH, Weinheim. doi : 10.1002/14356007.a03_507

[3] Roger Adams, C. S. Marvel, H. T. Clarke, G. S. Babcock, and T. F. Murray (1921). "Benzenesulfonyl chloride". Organic Syntheses . 1: 21{{cite journal}}: CS1 maint: multiple names: authors list (link); Collected Volumes, vol. 1, p. 84.

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[2]

[3]

Names

Preferred IUPAC name 1,1′-Sulfonyldibenzene
Other names Diphenyl sulphone
Identifiers
CAS Number	127-63-9 ^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:78360
ChemSpider	29117
ECHA InfoCard	100.004.413
PubChem CID	31386
UNII	V25W2CFS3M ^Y
CompTox Dashboard (EPA)	DTXSID6041892
InChI InChI=1S/C12H10O2S/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H Key: KZTYYGOKRVBIMI-UHFFFAOYSA-N InChI=1/C12H10O2S/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H Key: KZTYYGOKRVBIMI-UHFFFAOYAU
SMILES O=S(=O)(c1ccccc1)c2ccccc2
Properties
Chemical formula	C₁₂H₁₀O₂S
Molar mass	218.27 g·mol⁻¹
Melting point	123 °C (253 °F; 396 K)
Boiling point	379 °C (714 °F; 652 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references