92816-1G Display Image

Maleic acid, Standard for quantitative NMR, TraceCERT

Code: 92816-1G D2-231

General description

This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This C...


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€139.87 1G
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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.

Maleic acid can be obtained via distillation of malic acid. It can undergo conversion to fumaric acid via heating in the presence of a strong acid.

Legal Information

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

Other Notes

Chemcial Shift: 6.2 ppm (chemical shifts may slightly vary depending on the experimental conditions)Suitable NMR solvents: D2O, MeOD, DMSO-d6

application(s)cleaning productscosmeticsflavors and fragrancesfood and beveragespersonal care
density1.59 g/mL at 25 °C (lit.)
descriptionqNMR Standard for D2O and organic solvents (6.2 ppm)
formatneat
gradeStandard for quantitative NMR, certified reference material, TraceCERT®
InChI keyVZCYOOQTPOCHFL-UPHRSURJSA-N
InChI1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
mp130-135 °C (lit.)
Quality Level300
shelf lifelimited shelf life, expiry date on the label
SMILES stringOC(=O)C=C/C(O)=O
technique(s)gas chromatography (GC): suitable, qNMR: suitable
Cas Number110-16-7
This product has met the following criteria: