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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:
107-41-5
Molecular Weight:
118.17
Beilstein:
1098298
EC Number:
203-489-0
MDL number:
MFCD00004547
UNSPSC Code:
12352200
PubChem Substance ID:
57652149
NACRES:
NA.26

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.)

mp

−40 °C (lit.)

solubility

H2O: 1 M at 20 °C, clear, colorless

density

0.925 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤1 mg/kg
As: ≤0.1 mg/kg
Ba: ≤1 mg/kg
Bi: ≤1 mg/kg
Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Li: ≤1 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Mo: ≤1 mg/kg
Na: ≤20 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Sr: ≤1 mg/kg
Zn: ≤1 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01

SMILES string

CC(O)CC(C)(C)O

InChI

1S/C6H14O2/c1-5(7)4-6(2,3)8/h5,7-8H,4H2,1-3H3

InChI key

SVTBMSDMJJWYQN-UHFFFAOYSA-N

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Other Notes

Used in the crystallisation of proteins

Pictograms

Exclamation markHealth hazard
GHS07,GHS08

Signal Word

Warning

Hazard Statements

H315 - H319 - H361d

Hazard Classifications

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

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

201.2 °F - closed cup

Flash Point(C)

94 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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
Jose Antonio Cuesta-Seijo et al.
Structure (London, England : 1993), 18(9), 1210-1219 (2010-09-10)
Enzymatic reactions involving bilayer lipids occur in an environment with strict physical and topological constraints. The integral membrane enzyme PagP transfers a palmitoyl group from a phospholipid to lipid A in order to assist Escherichia coli in evading host immune
Yoshikazu Tanaka et al.
Protein science : a publication of the Protein Society, 20(2), 448-456 (2011-02-01)
Staphylococcal α-hemolysin is expressed as a water-soluble monomeric protein and assembles on membranes to form a heptameric pore structure. The heptameric pore structure of α-hemolysin can be prepared from monomer in vitro only in the presence of deoxycholate detergent micelles
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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