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| IUPACName = 4,4'-Sulfonyldiphenol | OtherNames = BPS, 4,4'-sulfonylbisphenol, bis(4-hydroxyphenyl)sulfone |Section2= |Section3= }} Bisphenol S (BPS) is an organic compound with the formula (HOC6H4)2SO2. It has two phenol functional groups on either side of a sulfonyl group. It is commonly used in curing fast-drying epoxy resin adhesives. It is a bisphenol, and a close analog of bisphenol A (BPA) in which the dimethylmethylene group (C(CH3)2) is replaced with a sulfone group (SO2). ==Use== BPS is used in curing fast-drying epoxy glues and as a corrosion inhibitor. It is also commonly used as a reactant in polymer reactions. BPS has become increasingly common as a plasticizing agent following the widespread bans on the use of BPA due to its estrogen-mimicking properties, and BPS can now be found in a variety of common consumer products. In some cases, BPS is used where the legal prohibition on BPA allows products containing BPS to be labelled "BPA free". BPS also has the advantage of being more stable to heat and light than BPA. To comply with restrictions and regulations on BPA due to its confirmed toxicity, manufacturers are gradually replacing BPA with other related compounds, mainly bisphenol S (BPS; 4,4′-sulfonyldiphenol), as substitutes in industrial applications.〔Chen, M. Y.; Ike, M.; Fujita, M. Acute toxicity, mutagenicity, and estrogenicity of bisphenol-A and other bisphenols. Environ. Toxicol. 2002, 17 (1), 80−86.〕 BPS is also used as an anticorrosive agent in epoxy glues. Chemically, BPS is being used as a reagent in polymer reactions. BPS has also been reported to occur in canned foodstuffs, such as tin cans.〔(Viñas, P.; Campillo, N.; Martínez-Castillo, N.; Hernandez- ́ Cordoba, M. Comparison of two derivatization-based methods for ́ solid-phase microextraction-gas chromatography-mass spectrometric determination of bisphenol A, bisphenol S and biphenol migrated from food cans. Anal. Bioanal. Chem. 2010, 397 (1), 115−125.)〕 In a recent study analyzing BPS in a variety of paper products worldwide, BPS was found in 100% of tickets, mailing envelopes, airplane boarding passes, and airplane luggage tags. In this study, very high concentrations of BPS were detected in thermal receipt samples collected from cities in the United States, Japan, Korea, and Vietnam. The BPS concentrations were large but varied greatly, from a few tens of nanograms per gram to several milligrams per gram. Nevertheless, concentrations of BPS used in thermal paper are usually lower compared to those of BPA. Finally, BPS can get into the human body through dermal absorption from handling banknotes. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bisphenol S」の詳細全文を読む スポンサード リンク
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