8.06086

α-Methylstyrene

(stabilised with 4-tert-butylpyrocatechol) for synthesis

• Synonym(s): α-Methylstyrene, 2-Phenyl-1-propene, Isopropenylbenzene
• Linear Formula: C₆H₅C(CH₃)=CH₂
• CAS Number: 98-83-9
• Molecular Weight: 118.18
• MDL number: MFCD00008859
• UNSPSC Code: 12352005
• EC Index Number: 202-705-0
• NACRES: NA.22

Properties

• vapor pressure: 2.9 hPa ( 20 °C)
• Quality Level: 200
• Assay: ≥99.0% (GC)
• form: liquid
• autoignition temp.: 445 °C
• potency: 4900 mg/kg LD₅₀, oral (Rat)
• expl. lim.: 0.9-6.6 % (v/v)
• pH: 5-6 (500 g/L in H₂O)
• bp: 164 °C/1013 hPa
• mp: -23 °C
• transition temp: flash point 40 °C (DIN 51758)
• solubility: 560 mg/L
• density: 0.91 g/cm³ at 20 °C
• storage temp.: 2-30°C
• InChI: 1S/C9H10/c1-8(2)9-6-4-3-5-7-9/h3-7H,1H2,2H3
• InChI key: XYLMUPLGERFSHI-UHFFFAOYSA-N

Description

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.908 - 0.910
Identity (IR): passes test

Safety Information

• Pictograms: GHS02,GHS07,GHS08,GHS09
• Signal Word: Danger
• Hazard Statements: H226 - H304 - H317 - H319 - H335 - H361fd - H411
• Precautionary Statements: P210 - P273 - P280 - P301 + P310 - P303 + P361 + P353 - P331
• Hazard Classifications: Aquatic Chronic 2 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Repr. 2 - Skin Sens. 1 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 2
• Flash Point(F): 114.8 °F - closed cup
• Flash Point(C): 46 °C - closed cup