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06856

Supelco

Duroquinone

Standard for quantitative NMR, TraceCERT®

Synonym(s):
Tetramethyl-p-benzoquinone, 2,3,5,6-Tetramethyl-1,4-benzoquinone
Empirical Formula (Hill Notation):
C10H12O2
CAS Number:
Molecular Weight:
164.20
Beilstein:
1909128
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

Quality Level

grade

Standard for quantitative NMR
certified reference material
TraceCERT®

description

qNMR Standard for organic solvents (2 ppm)

product line

TraceCERT®

shelf life

limited shelf life, expiry date on the label

storage condition

under inert gas (Argon)

application(s)

gas chromatography (GC): suitable
qNMR: suitable

mp

110-112 °C (lit.)

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format

neat

SMILES string

CC1=C(C)C(=O)C(C)=C(C)C1=O

InChI

1S/C10H12O2/c1-5-6(2)10(12)8(4)7(3)9(5)11/h1-4H3

InChI key

WAMKWBHYPYBEJY-UHFFFAOYSA-N

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General description

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to SI unit kg and measured against primary material from an NMI, e.g. NIST.
Certified content incl. uncertainty and expiry date are given on the label. Information about trace impurities are stated on the certificate.
Download your certificate at: http://www.sigma-aldrich.com.

Other Notes

Chemcial Shift: 2 ppm (chemical shifts may slightly vary depending on the experimental conditions)
Suitable NMR solvents: CDCl3

Legal Information

TraceCERT is a registered trademark of Sigma-Aldrich Co. LLC

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

J Maly et al.
Analytical and bioanalytical chemistry, 381(8), 1558-1567 (2005-04-12)
Mass transport of the bulk of the analyte to the electrode and through the bioactive layer can be significantly improved by use of the nanoelectrode array and defined arrangement of protein film. This phenomenon has been studied by (i) atomic-force...
Xiao-Hui Duan et al.
The Journal of chemical physics, 120(21), 10025-10032 (2004-07-23)
Photoinduced electron transfer of the model system composed of vitamin E and duroquinone has been investigated using time-dependent density functional theory. Calculations for the excited states tell that the photoexcitation of the model system can directly yield the charge transfer...
R A Rothery et al.
Biochemistry, 40(17), 5260-5268 (2001-04-25)
We have investigated the functional relationship between three of the prosthetic groups of Escherichia coli nitrate reductase A (NarGHI): the two hemes of the membrane anchor subunit (NarI) and the [3Fe-4S] cluster of the electron-transfer subunit (NarH). In two site-directed...
Said H Audi et al.
American journal of physiology. Lung cellular and molecular physiology, 289(5), L788-L797 (2005-07-05)
NAD(P)H:quinone oxidoreductase 1 (NQO1) plays a dominant role in the reduction of the quinone compound 2,3,5,6-tetramethyl-1,4-benzoquinone (duroquinone, DQ) to durohydroquinone (DQH2) on passage through the rat lung. Exposure of adult rats to 85% O2 for > or =7 days stimulates...
Marilyn P Merker et al.
American journal of physiology. Lung cellular and molecular physiology, 290(3), L607-L619 (2005-10-26)
The objective of this study was to examine the impact of chronic hyperoxic exposure (95% O2 for 48 h) on intact bovine pulmonary arterial endothelial cell redox metabolism of 2,3,5,6-tetramethyl-1,4-benzoquinone (duroquinone, DQ). DQ or durohydroquinone (DQH2) was added to normoxic...

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