92816

Maleic acid

Standard for quantitative NMR, TraceCERT^®

• Synonym(s): Toxilic acid, cis-Butenedioic acid
• Linear Formula: HO₂CCH=CHCO₂H
• Molecular Weight: 116.07
• Beilstein: 605762
• EC Number: 203-742-5
• MDL number: MFCD00063177
• PubChem Substance ID: 329770173
• NACRES: NA.24

Properties

• Quality Level: 300
• grade: Standard for quantitative NMR; certified reference material; TraceCERT^®
• description: qNMR Standard for D₂O and organic solvents (6.2 ppm)
• shelf life: limited shelf life, expiry date on the label
• technique(s): gas chromatography (GC): suitable; qNMR: suitable
• mp: 130-135 °C (lit.)
• density: 1.59 g/mL at 25 °C (lit.)
• application(s): cleaning products; cosmetics; flavors and fragrances; food and beverages; personal care
• format: neat
• SMILES string: OC(=O)\C=C/C(O)=O
• InChI: 1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1-
• InChI key: VZCYOOQTPOCHFL-UPHRSURJSA-N

Description

General description

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.

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.

Other Notes

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

Legal Information

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

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H302 + H312 - H315 - H317 - H318 - H335
• Precautionary Statements: P261 - P264 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 8B - Non-combustible, corrosive hazardous materials
• WGK: WGK 1