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|Section2= |Section3= }} 2-Methyl-2,4-pentanediol (MPD) is an organic compound with the formula (CH3)2C(OH)CH2CH(OH)CH3. This colourless liquid is a chiral diol. It is produced industrially from diacetone alcohol by hydrogenation.〔Stylianos Sifniades, Alan B. Levy, "Acetone" in Ullmann’s Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2005. 〕 Total European and USA production was 15000 tonnes in 2000.〔(SIDS Initial Assessment Report for SIAM 13: Hexylene Glycol )〕 2-Methyl-2,4-pentanediol exists as two enantiomers, 4R(-) and 4S(+). In the Protein Data Bank, the 3-letter code "MPD" refers to the (S)-(-) enantiomer, while "MRD" is used to refer to the (R)-(+) version. Commercially sold products labeled "MPD" are often the racemate,〔(MPD at Hampton Research ), MPD Product Page〕 also sold as and referred to as "hexylene glycol.〔(Hexylene Glycol at Sigma Aldrich ), Hexylene Glycol Product Page〕" ==Uses== The two hydroxy groups confer water solubility and the hydrocarbon portion of the molecule makes it compatible with oils, giving 2-methyl-2,4-pentanediol surfactant and emulsion-stabilizing properties. Its relatively high viscosity can be used to control the flow properties of industrial products including coatings, cleansers, solvents, and hydraulic fluids.〔(Chemicalland21.com ) Hexylene glycol〕 Its high viscosity is also conducive for its use as a thickening agent in many cosmetic products, and it is speculated to have anti-fungal properties. Like related diols, it forms borate esters. 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「2-Methyl-2,4-pentanediol」の詳細全文を読む スポンサード リンク
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