294985

Allen

≥95%

• Synonym(e): Propadien
• Lineare Formel: H₂C=C=CH₂
• CAS-Nummer: 463-49-0
• Molekulargewicht: 40.06
• Beilstein: 1730774
• EG-Nummer: 207-335-3
• MDL-Nummer: MFCD00008566
• UNSPSC-Code: 12142100
• PubChem Substanz-ID: 24857749
• NACRES: NA.22

Eigenschaften

• Dampfdichte: 1.42 (20 °C, vs air)
• Qualitätsniveau: 100
• Dampfdruck: 6795 mmHg ( 21 °C)
• Assay: ≥95%
• Expl.-Gr.: 13 %
• bp: −34 °C (lit.)
• mp (Schmelzpunkt): −136 °C (lit.)
• SMILES String: C=C=C
• InChI: 1S/C3H4/c1-3-2/h1-2H2
• InChIKey: IYABWNGZIDDRAK-UHFFFAOYSA-N

Beschreibung

Anwendung

• Allene is extensively used in a variety of photochemical, thermal, and transition metal-mediated cycloadditions.
• It can be lithiated to obtain allenyllithium which reacts with alkyl halides to afford terminal allenes.
• Additional application includes the preparation of reagents such as isopropenylsilanes and isopropenylstannanes by reacting with stannyl and silyl cuprates respectively.

Verpackung

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:

• Aldrich^® lecture-bottle station systems
• Aldrich^® lecture-bottle gas regulators

Sonstige Hinweise

See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation

Rechtliche Hinweise

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

Sicherheitshinweise

• Piktogramme: GHS02,GHS04
• Signalwort: Danger
• H-Sätze: H220,H280
• P-Sätze: P210 - P377 - P381 - P410 + P403
• Gefahreneinstufungen: Flam. Gas 1 - Press. Gas Liquefied gas
• Lagerklassenschlüssel: 2A - Gases
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)