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Key Documents

68338

Sigma-Aldrich

Hexylene glycol

BioUltra, ≥99.0% (GC)

Synonym(s):

(±)-2-Methyl-2,4-pentanediol, MPD

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About This Item

Linear Formula:
CH3CH(OH)CH2C(CH3)2OH
CAS Number:
Molecular Weight:
118.17
Beilstein/REAXYS Number:
1098298
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.26

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vapor density

4.1 (vs air)

vapor pressure

0.02 mmHg ( 20 °C)

product line

BioUltra

assay

≥99.0% (GC)

form

liquid (or viscous liquid)

expl. lim.

7.4 %

impurities

insoluble matter, passes filter test

refractive index

n20/D 1.427 (lit.)
n20/D 1.428

pH

6-8 (25 °C, 1 M in H2O)

bp

197 °C (lit.)

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Other Notes

Used in the crystallisation of proteins [1][2]

pictograms

Health hazardExclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Repr. 2 - Skin Irrit. 2

Storage Class

10 - Combustible liquids

wgk_germany

WGK 1

flash_point_f

201.2 °F - closed cup

flash_point_c

94 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


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A.M. Brzozowski et al.
Journal of Applied Crystallography, 34, 97-97 (2001)
Kanchan Anand et al.
Acta crystallographica. Section D, Biological crystallography, 58(Pt 10 Pt 1), 1722-1728 (2002-09-28)
2-Methyl-2,4-pentanediol (MPD) is the most popular chemical additive used for crystallization of biological macromolecules. However, the mechanism of its action on proteins in aqueous solution is not well understood. We have carried out a systematic analysis of the conformation and
Ami Matsumoto et al.
Acta crystallographica. Section F, Structural biology and crystallization communications, 69(Pt 3), 332-335 (2013-03-23)
Peptidyl-tRNA is produced from the ribosome as a result of aborted translation. Peptidyl-tRNA hydrolase cleaves the ester bond between the peptide and the tRNA of peptidyl-tRNA molecules, to recycle tRNA for further rounds of protein synthesis. In this study, peptidyl-tRNA
Armando G Villaseñor et al.
Acta crystallographica. Section D, Biological crystallography, 68(Pt 8), 893-900 (2012-08-08)
Focused acoustic energy allows accurate and precise liquid transfer on scales from picolitre to microlitre volumes. This technology was applied in protein crystallization, successfully transferring a diverse set of proteins as well as hundreds of precipitant solutions from custom and
Catherine Michaux et al.
Journal of molecular biology, 375(5), 1477-1488 (2007-12-18)
Sodium dodecyl sulfate (SDS) is a highly effective and widely used protein denaturant. We show that certain amphipathic cosolvents such as 2-methyl-2,4-pentanediol (MPD) can protect proteins from SDS denaturation, and in several cases can refold proteins from the SDS-denatured state.

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