27980

Crotonaldehyd (cis+trans)

ratio of cis- and trans-isomers (~1:20), ≥99.5% (GC)

• Synonym(e): 2-Butenal (cis+trans)
• Lineare Formel: CH₃CH=CHCHO
• CAS-Nummer: 4170-30-3
• Molekulargewicht: 70.09
• Beilstein: 1209254
• MDL-Nummer: MFCD00007003
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 57648285
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 200
• Assay: ≥99.5% (GC)
• Form: liquid
• Enthält: ~0.1% 2,6-di-tert-butyl-4-methylphenol as stabilizer; ~1% H₂O as stabilizer
• Brechungsindex: n20/D 1.437
• bp: 101-102 °C (lit.)
• Dichte: 0.853 g/mL at 20 °C (lit.)
• Funktionelle Gruppe: aldehyde
• Lagertemp.: 2-8°C
• SMILES String: C\C=C\C=O
• InChI: 1S/C4H6O/c1-2-3-4-5/h2-4H,1H3/b3-2+
• InChIKey: MLUCVPSAIODCQM-NSCUHMNNSA-N

Beschreibung

Allgemeine Beschreibung

Crotonaldehyde(2-Butenal) is an α, β-unsaturated aldehyde and extremely reactive compound. It serves as a chemical building block in the production of solvents, sorbates, and, to a lower extent, pharmaceuticals and aroma compounds. Additionally, it can be used as an alcohol denaturant, in leather tanning and in the manufacturing of rubber accelerators.

Anwendung

Crotonaldehyde is used:

• In the manufacturing of sorbic acid that are widely employed as food preservatives to avoid the food spoilage by microorganisms.

Sicherheitshinweise

• Piktogramme: GHS02,GHS06,GHS08,GHS05,GHS09
• Signalwort: Danger
• H-Sätze: H225,H301 + H311,H315,H318,H330,H335,H341,H373,H400
• P-Sätze: P210 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Eye Dam. 1 - Flam. Liq. 2 - Muta. 2 - Skin Irrit. 2 - STOT RE 2 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 3
• Flammpunkt (°F): 55.4 °F - closed cup
• Flammpunkt (°C): 13 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter