27980

Crotonaldehyde, mixture of cis and trans

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

• Synonyme(s) : 2-Butenal, mixture of cis and trans
• Formule linéaire : CH₃CH=CHCHO
• CAS Number: 4170-30-3
• Poids moléculaire : 70.09
• Beilstein: 1209254
• Numéro MDL: MFCD00007003
• Code UNSPSC : 12352100
• ID de substance PubChem : 57648285
• Nomenclature NACRES : NA.22

Propriétés

• Niveau de qualité: 200
• Essai: ≥99.5% (GC)
• Forme: liquid
• Contient: ~0.1% 2,6-di-tert-butyl-4-methylphenol as stabilizer; ~1% H₂O as stabilizer
• Indice de réfraction: n20/D 1.437
• pb: 101-102 °C (lit.)
• Densité: 0.853 g/mL at 20 °C (lit.)
• Groupe fonctionnel: aldehyde
• Température de stockage: 2-8°C
• Chaîne SMILES: C\C=C\C=O
• InChI: 1S/C4H6O/c1-2-3-4-5/h2-4H,1H3/b3-2+
• Clé InChI: MLUCVPSAIODCQM-NSCUHMNNSA-N

Description

Description générale

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.

Application

Crotonaldehyde is used:

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

Informations sur la sécurité

• Pictogrammes: GHS02,GHS06,GHS08,GHS05,GHS09
• Mention d'avertissement: Danger
• Mentions de danger: H225,H301 + H311,H315,H318,H330,H335,H341,H373,H400
• Conseils de prudence: P210 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classification des risques: 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
• Organes cibles: Respiratory system
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): 55.4 °F - closed cup
• Point d'éclair (°C): 13 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter