8.21258

2-Methyl-1,3-butadiene

(stabilised) for synthesis

• Sinónimos: 2-Methyl-1,3-butadiene, Isoprene
• Fórmula lineal: CH₂=CHC(CH₃)=CH₂
• Número de CAS: 78-79-5
• Peso molecular: 68.12
• MDL number: MFCD00008600
• UNSPSC Code: 12352002
• EC Index Number: 201-143-3
• NACRES: NA.22

Propiedades

• vapor pressure: 605 hPa ( 20 °C)
• Quality Level: 200
• assay: ≥98.0% (GC)
• form: liquid
• autoignition temp.: 220 °C
• potency: >2000 mg/kg LD₅₀, oral (Rat)
• expl. lim.: 1-9.7 % (v/v)
• bp: 34 °C/1013 hPa
• mp: -146 °C
• transition temp: flash point -54 °C
• density: 0.68 g/cm³ at 20 °C
• InChI: 1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
• InChI key: RRHGJUQNOFWUDK-UHFFFAOYSA-N

Descripción

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.681 - 0.683
Identity (IR): passes test

Información de seguridad

• pictograms: GHS02,GHS08
• signalword: Danger
• hcodes: H224 - H341 - H350 - H412
• pcodes: P202 - P210 - P233 - P273 - P308 + P313 - P403 + P233
• Hazard Classifications: Aquatic Chronic 3 - Carc. 1B - Flam. Liq. 1 - Muta. 2
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: -65.2 °F - closed cup
• flash_point_c: -54 °C - closed cup