295469

2-Methylpropene

99%

• Synonyme(s) : Isobutylene
• Formule linéaire : (CH₃)₂C=CH₂
• Numéro CAS: 115-11-7
• Poids moléculaire : 56.11
• Numéro Beilstein : 773645
• Numéro CE : 204-066-3
• Numéro MDL: MFCD00008898
• Code UNSPSC : 12142100
• ID de substance PubChem : 24857786
• Nomenclature NACRES : NA.22

Propriétés

• Densité de vapeur: 2 (vs air)
• Niveau de qualité: 100
• Pression de vapeur: 3278 mmHg ( 37.7 °C)
• Pureté: 99%
• Température d'inflammation spontanée: 869 °F
• Point d'ébullition: −6.9 °C (lit.)
• Pf: −140 °C
• Chaîne SMILES: CC(C)=C
• InChI: 1S/C4H8/c1-4(2)3/h1H2,2-3H3
• Clé InChI: VQTUBCCKSQIDNK-UHFFFAOYSA-N

Description

Description générale

2-methylpropene is used to synthesize S-(+)-2,2-Dimethylcyclopropane carboxylic acid via asymmetric cyclopropanation reaction.

Application

2-Methylpropene can be used in the following reactions:

• Asymmetric synthesis of S-(+)-2,2-dimethylcyclopropane carboxylic acid, a key building block for the synthesis of cilastatin.
• Alkylation of p-xylene to form t-butyl-p-xylene catalyzed by a heteropolyacid.
• Synthesis of poly(2-methylpropene) or polyisobutene.

Conditionnement

Supplied in a Sure/Pac^™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

• Aldrich^® Sure/Pac^™ station for liquefied gases Z566446
• PTFE Sealing tape Z104388 or Z221880
• Brass hose adapter Z146811
• Aldrich^® mini gas regulator Z513539

Informations légales

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

Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

Informations sur la sécurité

• Pictogrammes: GHS02,GHS04
• Mention d'avertissement: Danger
• Mentions de danger: H220,H280
• Conseils de prudence: P210 - P410 + P403
• Classification des risques: Flam. Gas 1 - Press. Gas Liquefied gas
• Code de la classe de stockage: 2A - Gases
• Classe de danger pour l'eau (WGK): nwg
• Point d'éclair (°F): -112.0 °F - closed cup
• Point d'éclair (°C): -80 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves