59240

Isoprene

analytical standard

• Sinonimo/i: 2-Methyl-1,3-butadiene
• Formula condensata: CH₂=CHC(CH₃)=CH₂
• Numero CAS: 78-79-5
• Peso molecolare: 68.12
• Beilstein: 969158
• Numero CE: 201-143-3
• Numero MDL: MFCD00008600
• Codice UNSPSC: 41116107
• ID PubChem: 329758612
• NACRES: NA.24

Proprietà

• Grado: analytical standard
• Livello qualitativo: 100
• Densità del vapore: 2.35 (vs air)
• Tensione di vapore: 8.82 psi ( 20 °C)
• Saggio: ≥99.5% (GC)
• Temp. autoaccensione: 428 °F
• Durata: limited shelf life, expiry date on the label
• contiene: ~0.02% 4-tert-butylcatechol as stabilizer
• Limite di esplosione: 10 %
• tecniche: HPLC: suitable; gas chromatography (GC): suitable
• Indice di rifrazione: n20/D 1.422 (lit.); n20/D 1.422
• P. ebollizione: 34 °C (lit.)
• Punto di fusione: −146 °C (lit.)
• Densità: 0.681 g/mL at 20 °C; 0.681 g/mL at 25 °C (lit.)
• applicazioni: cleaning products; cosmetics; environmental; food and beverages; personal care; petroleum
• Formato: neat
• Temperatura di conservazione: 2-8°C
• Stringa SMILE: CC(=C)C=C
• InChI: 1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3; RRHGJUQNOFWUDK-UHFFFAOYSA-N

Descrizione

Descrizione generale

Isoprene is a reactive aliphatic hydrocarbon[1] that originates as a byproduct of cholesterol synthesis.[2]

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

Applicazioni

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[2] and thermal desorption gas chromatography with ultraviolet detection.[3]

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

Prodotti consigliati

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.

Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS08
• Avvertenze: Danger
• Indicazioni di pericolo: H224,H341,H350,H412
• Consigli di prudenza: P202 - P210 - P233 - P273 - P308 + P313 - P403 + P233
• Classi di pericolo: Aquatic Chronic 3 - Carc. 1B - Flam. Liq. 1 - Muta. 2
• Codice della classe di stoccaggio: 3 - Flammable liquids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): -65.2 °F - closed cup
• Punto d’infiammabilità (°C): -54 °C - closed cup
• Dispositivi di protezione individuale: Eyeshields, Faceshields, Gloves