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Merck

39579

Sigma-Aldrich

2,5-Dimethyl-1,4-benzoquinone

≥98.0%

Synonym(s):

2,5-Dimethyl-2,5-cyclohexadiene-1,4-dione, 2,5-Dimethyl-p-benzoquinone, 2,5-Dimethyl-p-quinone, 2,5-Dimethylbenzoquinone, 2,5-Xyloquinone, 3,6-Dimethyl-p-benzoquinone

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100 ML
₩74,400
1 L
₩200,260

₩74,400


Estimated to ship onJanuary 31, 2025Details


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100 ML
₩74,400
1 L
₩200,260

About This Item

Empirical Formula (Hill Notation):
C8H8O2
CAS Number:
Molecular Weight:
136.15
Beilstein:
2041348
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay:
≥98.0%

₩74,400


Estimated to ship onJanuary 31, 2025Details


Request a Bulk Order

Assay

≥98.0%

mp

123-125 °C

solubility

toluene: soluble 0.5 g/10 mL, clear to faintly turbid, yellow to brown

functional group

ketone

SMILES string

CC1=CC(=O)C(C)=CC1=O

InChI

1S/C8H8O2/c1-5-3-8(10)6(2)4-7(5)9/h3-4H,1-2H3

InChI key

MYKLQMNSFPAPLZ-UHFFFAOYSA-N

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This Item
170275139513E14659
Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

100

refractive index

n20/D 1.431 (lit.)

refractive index

n20/D 1.514 (lit.)

refractive index

n20/D 1.4713 (lit.)

refractive index

n20/D 1.422 (lit.)

mp

−76 °C (lit.)

mp

23-25 °C (lit.)

mp

-

mp

−15 °C (lit.)

bp

169 °C (lit.)

bp

94-96 °C/10 mmHg (lit.)

bp

110-112 °C/14 mmHg (lit.)

bp

146 °C (lit.)

density

0.789 g/mL at 25 °C (lit.)

density

0.974 g/mL at 25 °C (lit.)

density

0.951 g/mL at 25 °C (lit.)

density

0.83 g/mL at 25 °C (lit.)

General description

2,5-Dimethyl-1,4-benzoquinone is a quinone derivative. Its reaction with jack bean urease in phosphate buffer, pH 7.8 has been studied.[1] It is present as one of the component of defensive secretion of opilionid Acanthopachylus aculeatus.[2] It has been investigated as inhibitor of jack bean urease in 50mM phosphate buffer, pH 7.0.[3]

Application

2,5-Dimethyl-1,4-benzoquinone may be used in a key step involved in the total synthesis of (−)-cyathin A3.[4]

Pictograms

Skull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Thomas Eisner et al.
The Journal of experimental biology, 207(Pt 8), 1313-1321 (2004-03-11)
The opilionid Acanthopachylus aculeatus was shown to produce a defensive secretion containing quinones (2,3-dimethyl-1,4-benzoquinone, 2,5-dimethyl-1,4-benzoquinone and 2,3,5-trimethyl-1,4-benzoquinone), confirming the findings reported nearly a half century ago in a classic study. The mechanism by which the opilionid puts the secretion to
Dale E Ward et al.
Organic letters, 9(15), 2843-2846 (2007-06-22)
The total synthesis of (-)-cyathin A3 is described. The key step involves an unusual enantioselective Diels-Alder reaction of 2,5-dimethyl-1,4-benzoquinone with 2,4-bis(trimethylsilyloxy)-1,3-pentadiene, using Mikami's catalyst [(R)-BINOL + Cl2Ti(OiPr)2 + 4 A mol sieves] modified by addition of Mg and SiO2. Because
M Floreani et al.
The Journal of pharmacology and experimental therapeutics, 260(2), 468-473 (1992-02-01)
In guinea pig and rat cardiac tissue, redox cycling benzoquinones (2,5-dimethyl-p-benzoquinone and duroquinone) and naphthoquinones (menadione and 2,3-dimethoxy-1,4-naphthoquinone) generated superoxide anion (O2-.) both through one- and two-electron reductions, the generation being significantly greater in guinea pig than in rat tissue.
Wiesława Zaborska et al.
Journal of enzyme inhibition and medicinal chemistry, 17(4), 247-253 (2003-01-18)
1,4-benzoquinone (BQ) and 2,5-dimethyl-1,4-benzoquinone (DMBQ) were studied as inhibitors of jack bean urease in 50 mM phosphate buffer, pH 7.0. The mechanisms of inhibition were evaluated by progress curves studies and steady-state approach to data achieved by preincubation of the
J Cao et al.
Biochimica et biophysica acta, 1015(2), 180-188 (1990-02-02)
Upon illumination, a dark-adapted photosynthetic sample shows time-dependent changes in chlorophyll (Chl) a fluorescence yield, known as the Kautsky phenomenon or the OIDPS transient. Based on the differential effects of electron acceptors such as 2,5-dimethyl-p-benzoquinone (DMQ) and 2,6-dichloro-p-benzoquinone (DCBQ) on

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