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Merck

74658

1,2,4,5-Tetramethylbenzene

qNMR standard, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Synonym(s):

Durene, 1,2,4,5-Tetramethylbenzene

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About This Item

Linear Formula:
C6H2(CH3)4
CAS Number:
95-93-2
Molecular Weight:
134.22
NACRES:
NA.24
PubChem Substance ID:
329765774
eCl@ss:
39011404
UNSPSC Code:
41116107
EC Number:
202-465-7
MDL number:
MFCD00008528
Beilstein/REAXYS Number:
1903393

Product Name

1,2,4,5-Tetramethylbenzene, qNMR standard, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

InChI key

SQNZJJAZBFDUTD-UHFFFAOYSA-N

InChI

1S/C10H14/c1-7-5-9(3)10(4)6-8(7)2/h5-6H,1-4H3

SMILES string

Cc1cc(C)c(C)cc1C

grade

certified reference material
TraceCERT®

vapor density

4.6 (vs air)

vapor pressure

160 mmHg ( 140 °C)

description

qNMR Standard for organic solvents (6.9 ppm / 2.2 ppm)

shelf life

limited shelf life, expiry date on the label

manufacturer/tradename

Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

technique(s)

gas chromatography (GC): suitable

mp

76-80 °C (lit.)

density

0.838 g/mL at 25 °C (lit.)

application(s)

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
personal care
pharmaceutical

format

neat

Quality Level

300

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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 primary material from an NMI, e.g. NIST or NMIJ.
Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate.
Download your certificate at: http://www.sigma-aldrich.com.

Check out our entire range of quantitative NMR standards (qNMR standards)
This certified reference material (CRM) is produced in accordance with ISO 17034 and characterized in accordance with ISO/IEC 17025. This CRM is traceable to SI unit kg and measured against primary material from a National Metrology Institute (NMI), e.g. NIST.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

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Other Notes

Chemcial Shift: 2.3 + 7.0 ppm (chemical shifts may slightly vary depending on the experimental conditions)
Suitable NMR solvents: CDCl3
Find a digital Reference Material for this product availableon our online platform ChemisTwin® for NMR. You can use thisdigital equivalent on ChemisTwin® for your sample identityconfirmation and compound quantification (with digital external standard). AnNMR spectrum of this substance can be viewed and an online comparison againstyour sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Legal Information

TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

FlameEnvironment
GHS02,GHS09

signalword

Danger

hcodes

H228,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Sol. 1

Storage Class

4.1B - Flammable solid hazardous materials

wgk

WGK 1

flash_point_f

165.2 °F - closed cup

flash_point_c

74 °C - closed cup

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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D Reichert et al.
Solid state nuclear magnetic resonance, 13(3), 137-148 (1999-02-19)
One- (1-D) and two-dimensional (2-D) carbon-13 NMR exchange measurements in powder samples of isotopically normal durene under magic angle spinning (MAS) are reported. The experiments include rotor synchronized 2-D exchange (RS2DE), 1-D magnetization transfer (MT) and time reverse ODESSA (tr-ODESSA).
S David et al.
Journal of inorganic biochemistry, 28(2-3), 125-135 (1986-10-01)
Solution equilibria are presented for in situ reactions of the type FeII(porp) + B----FeII(porp)B, where porp represents the dianion of some durene-capped porphyrins with variable length linking methylene straps, and B is 1-methyl, 1,2-dimethyl, or 1,5-dicyclohexylimidazole. Increasing distortion of the
A Leonardi et al.
Il Farmaco; edizione scientifica, 36(8), 711-720 (1981-08-01)
A series of N-[(2,3,4,6-tetramethylbenzoyl)alkyl]imidazoles and of N-([beta-(2,3,5,6-tetramethylphenyl)-beta-hydroxy]ethyl)imidazoles has been synthesized. All compounds were tested in mice for anticonvulsant activity against electroshock and pentylenetetrazole convulsions. These durene-derivatives showed good activity, whereas the corresponding benzene-derivatives were inactive.
M Mozzati et al.
Oral diseases, 20(8), 809-814 (2013-12-18)
The intravenous injection of bisphosphonates, currently used for osteoporosis, myeloma, or bone metastases, can cause ONJ especially in consequence of trauma. To avoid trauma during bisphosphonate treatment, preventive oral surgery is recommended. The research aimed to evidence whether inflammatory and
D Nardi et al.
Il Farmaco; edizione scientifica, 34(9), 789-801 (1979-09-01)
A series of substituted 2-(2,3,5,6-tetramethylbenzyl)imidazolines and related compounds have been synthesized to study the steric and hydrophobic effects on the vasoactivity of the introduction of four methyl groups on the phenyl moiety. The 2-(2,3,5,6-tetramethylbenzyl)imidazoline (I) showed a high hypertensive activity
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