8.22098

Methylstyrene

(mixture of 3- and 4-isomers) stabilised with 4-tert-butylpyrocatechol for synthesis

• Synonym(s): Methylstyrene, Vinyltoluene
• Linear Formula: 3/4-(CH₃)C₆H₄CH=CH₂
• CAS Number: 1319-73-9
• Molecular Weight: 118.18
• UNSPSC Code: 12352005
• EC Index Number: 215-292-7
• NACRES: NA.22

Properties

• vapor pressure: 1.47 hPa ( 20 °C)
• Quality Level: 200
• form: liquid
• autoignition temp.: 575 °C
• potency: 5000 mg/kg LD₅₀, oral (Rat)
• expl. lim.: 1.1-5.2 % (v/v)
• mp: -77 °C
• transition temp: flash point 52 °C
• density: 0.893 g/cm³ at 25 °C
• storage temp.: 2-30°C
• InChI: 1S/C9H10/c1-3-9-6-4-8(2)5-7-9/h3-7H,1H2,2H3
• InChI key: JLBJTVDPSNHSKJ-UHFFFAOYSA-N

Description

Analysis Note

Assay 3-methyl styrol (GC, area%): 40.0 - 60.0 % (a/a)
Assay 4-methyl styrol (GC, area%): 40.0 - 60.0 % (a/a)
Sum isomers (GC): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.896 - 0.898
Identity (IR): passes test

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Warning
• Hazard Statements: H226 - H332
• Precautionary Statements: P210 - P233 - P240 - P241 - P242 - P304 + P340 + P312
• Hazard Classifications: Acute Tox. 4 Inhalation - Flam. Liq. 3
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 1
• Flash Point(F): 125.6 °F
• Flash Point(C): 52 °C