1,2,4,5-Tetrachloro-3-nitrobenzene

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.

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Application
1,2,4,5-Tetrachloro-3-nitrobenzene may be used as an internal standard in the following:
Quantification of nicotine, glycerol, propylene glycol, and water in electronic cigarette fluids using a quantitative 1H NMR analysis method.[1] Quantification of free fatty acids in pharmaceutical lipids by 1H NMR method.[2]

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
Other Notes
Chemcial Shift: 7.8 – 8.4 ppm (chemical shifts may slightly vary depending on the experimental conditions)
Suitable NMR solvents: CDCl3, DMSO-d6
Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your 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