Maleic acid

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)

Maleic acid is a butenedioic acid having a double bond in cis- (Z)-configuration. It is used in the industrial manufacturing of lubricant additives, unsaturated polyester resins, surface coatings, plasticizers, copolymers, and agricultural chemicals.
This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. Find all available reference materials for compounds listed in 10/2011 here
Application
The certified reference material (CRM) is intended to be used as a standard for quantitative 1H-NMR measurements.
Features and Benefits
Produced and certified under ISO/IEC 17025 and ISO 17034 accreditation
Traceable to NIST PS1 (Benzoic acid)
Accompanied with a comprehensive Certificate of Analysis (CoA) (up to four pages), as per ISO Guide 31, with data on stability, density, homogeneity, the accuracy of concentration, uncertainty, and traceability
Gravimetrically prepared using high-quality qNMR-characterized starting materials and qualified precision balances to ensure minimal uncertainty
Rigorously tested through real-time stability studies to ensure accuracy and shelf life
Available in a solid neat format in a brown glass bottle
Other Notes
Chemcial Shift: 6.2 ppm (chemical shifts may slightly vary depending on the experimental conditions)
Suitable NMR solvents: D2O, MeOD, 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