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74658

Supelco

1,2,4,5-Tetramethylbenzene

Standard for quantitative NMR, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Synonym(s):

Durene, 1,2,4,5-Tetramethylbenzene

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100 ML
CN¥594.19
500 ML
CN¥849.08
1 L
CN¥1,250.63

CN¥594.19

Estimated to ship onApril 07, 2025Details

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100 ML
CN¥594.19
500 ML
CN¥849.08
1 L
CN¥1,250.63

About This Item

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

CN¥594.19

Estimated to ship onApril 07, 2025Details

Request a Bulk Order

grade

Standard for quantitative NMR
certified reference material
TraceCERT®

Quality Level

300

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
qNMR: suitable ((standard))
qNMR: suitable

mp

76-80 °C (lit.)

density

0.838 g/mL at 25 °C (lit.)

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1 of 4

This Item
48900W0625861375
May-Grünwald solution

63590

May-Grünwald solution

Giemsa Stain, Modified Solution (for the staining (of cellular blood components and blood parasites))

48900

Giemsa Stain, Modified Solution

Wright stain suitable for blood stain

W0625

Wright stain

Wright stain certified by the BSC

861375

Wright stain

suitability

Chlamydia spp., Plasmodium spp., bacteria, spirochetes, Histoplasma spp., protozoa, Trichomonas spp.

suitability

Chlamydia spp., Histoplasma spp., Plasmodium spp., Trichomonas spp., bacteria, protozoa, spirochetes

suitability

-

suitability

-

grade

for the staining of blood constituents

grade

-

grade

-

grade

certified by the Biological Stain Commission

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

density

0.80 g/mL at 20 °C

density

-

density

-

density

-

impurities

methanol

impurities

-

impurities

-

impurities

-

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)

Other Notes

Chemcial Shift: 2.3 + 7.0 ppm (chemical shifts may slightly vary depending on the experimental conditions)
Suitable NMR solvents: CDCl3

Recommended products

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

Signal Word

Danger

Hazard Statements

H228,H410

Hazard Classifications

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

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 1

Flash Point(F)

165.2 °F - closed cup

Flash Point(C)

74 °C - closed cup

Regulatory Information

危险化学品
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    A Pawlukojć et al.
    Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 63(3), 766-773 (2005-08-16)
    The results of inelastic neutron scattering (INS), Raman and infrared (IR) studies on 1,2,4,5-tetramethylbenzene (durene), tetramethylpyrazine (TMP) and tetramethyl-1,4-benzoquinone (TMBQ) in the solid state are reported. The observed frequencies are analyzed on the basis of DFT calculations. The low frequency
    J-B Ramond et al.
    Letters in applied microbiology, 60(4), 359-366 (2014-12-17)
    Normalization is a procedure classically employed to detect rare sequences in cellular expression profiles (i.e. cDNA libraries). Here, we present a normalization protocol involving the direct treatment of extracted environmental metagenomic DNA with S1 nuclease, referred to as normalization of
    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.
    Elin Rönnberg et al.
    Immunology, 143(2), 155-163 (2014-04-03)
    Staphylococcus aureus is a major pathogen that can cause a broad spectrum of serious infections including skin infections, pneumonia and sepsis. Peritoneal mast cells have been implicated in the host response towards various bacterial insults and to provide mechanistic insight
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