59240

Isoprene

analytical standard

• Synonyme(s) : 2-Methyl-1,3-butadiene
• Formule linéaire : CH₂=CHC(CH₃)=CH₂
• Numéro CAS: 78-79-5
• Poids moléculaire : 68.12
• Numéro Beilstein : 969158
• Numéro CE : 201-143-3
• Numéro MDL: MFCD00008600
• Code UNSPSC : 41116107
• ID de substance PubChem : 329758612
• Nomenclature NACRES : NA.24

Propriétés

• Qualité: analytical standard
• Niveau de qualité: 100
• Densité de vapeur: 2.35 (vs air)
• Pression de vapeur: 8.82 psi ( 20 °C)
• Pureté: ≥99.5% (GC)
• Température d'inflammation spontanée: 428 °F
• Durée de conservation: limited shelf life, expiry date on the label
• Contient: ~0.02% 4-tert-butylcatechol as stabilizer
• Limite d'explosivité: 10 %
• Technique(s): HPLC: suitable; gas chromatography (GC): suitable
• Indice de réfraction: n20/D 1.422 (lit.); n20/D 1.422
• Point d'ébullition: 34 °C (lit.)
• Pf: −146 °C (lit.)
• Densité: 0.681 g/mL at 20 °C; 0.681 g/mL at 25 °C (lit.)
• Application(s): cleaning products; cosmetics; environmental; food and beverages; personal care; petroleum
• Format: neat
• Température de stockage: 2-8°C
• Chaîne SMILES: CC(=C)C=C
• InChI: 1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
• Clé InChI: RRHGJUQNOFWUDK-UHFFFAOYSA-N

Description

Description générale

Isoprene is a reactive aliphatic hydrocarbon that originates as a byproduct of cholesterol synthesis.

This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. Find all available reference materials for compounds listed in 10/2011 here

Application

Isoprene may be used as an analytical reference standard for the quantification of the analyte in human breath samples using substrate-integrated hollow waveguide mid-infrared sensors and thermal desorption gas chromatography with ultraviolet detection.

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Produits recommandés

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Informations sur la sécurité

• Pictogrammes: GHS02,GHS08
• Mention d'avertissement: Danger
• Mentions de danger: H224,H341,H350,H412
• Conseils de prudence: P202 - P210 - P233 - P273 - P308 + P313 - P403 + P233
• Classification des risques: Aquatic Chronic 3 - Carc. 1B - Flam. Liq. 1 - Muta. 2
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): -65.2 °F - closed cup
• Point d'éclair (°C): -54 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves