63189

Maleinsäure

tested according to Ph. Eur.

• Synonym(e): Acidum maleicum, cis-Butendisäure, Toxilsäure
• Lineare Formel: HO₂CCH=CHCO₂H
• CAS-Nummer: 110-16-7
• Molekulargewicht: 116.07
• Beilstein: 605762
• EG-Nummer: 203-742-5
• MDL-Nummer: MFCD00063177
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 329759809

Eigenschaften

• Agentur: USP/NF; tested according to Ph. Eur.
• Assay: 99.0-101.0% substance (anhydrous) basis
• Form: fine crystals; powder
• mp (Schmelzpunkt): 130-135 °C (lit.)
• Löslichkeit: water: soluble 478.8 g/L at 20 °C
• Dichte: 1.59 g/mL at 25 °C (lit.)
• Kationenspuren: Fe: ≤5 ppm; heavy metals: ≤10 ppm
• Anwendung(en): pharmaceutical (small molecule)
• Lagertemp.: 2-8°C
• 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-
• InChIKey: VZCYOOQTPOCHFL-UPHRSURJSA-N

Beschreibung

Allgemeine Beschreibung

Maleic acid is a dicarboxylic acid. It can be synthesized from crotonaldehyde.[1]

Anwendung

Maleic acid may be used in the synthesis of (R,S)-malic acid[2] and fumaric acid.[3] It may be employed as an anionic monomer in the preparation of superswelling acrylamide (AAm)/maleic acid (MA) hydrogels.†

Sicherheitshinweise

• Piktogramme: GHS05,GHS07
• Signalwort: Danger
• H-Sätze: H302 + H312,H314,H317,H335
• P-Sätze: P260 - P271 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1 - Skin Sens. 1 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Persönliche Schutzausrüstung: dust mask type N95 (US), Eyeshields, Faceshields, Gloves