2-Methyl-2,4-pentanediol | |
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2-Methyl-2,4-pentanediol |
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Other names
Hexylene glycol; Diolane; 1,1,3-Trimethyltrimethylenediol; 2,4-Dihydroxy-2-methylpentane |
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Identifiers | |
Abbreviations | MPD |
CAS number | 107-41-5 |
PubChem | 7870 |
ChemSpider | 7582 |
UNII | KEH0A3F75J |
Jmol-3D images | Image 1 |
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Properties | |
Molecular formula | C6H14O2 |
Molar mass | 118.17 g mol−1 |
(verify) (what is: / ?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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Infobox references |
2-Methyl-2,4-pentanediol (MPD) is a chemical used in industrial coatings and as a chemical intermediate.[1] Total European and USA production was 15000 tonnes in 2000.[1] Its hydroxy groups give it some water solubility while the hydrocarbon portion of the molecule makes it compatible with oils, giving it surfactant and emulsion stabilizing properties, while its viscosity can be used to control the flow properties of industrial products including coatings, cleansers, solvents and hydraulic fluids.[2]
In the laboratory it is a common precipitant and cryoprotectant in protein crystallography.[3]
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[4], also sold as and referred to as "hexylene glycol[5]."