T73601

1,2,4-Trimethylbenzol

98%

• Synonym(e): Pseudocumol
• Lineare Formel: C₆H₃(CH₃)₃
• CAS-Nummer: 95-63-6
• Molekulargewicht: 120.19
• Beilstein: 1903005
• EG-Nummer: 202-436-9
• MDL-Nummer: MFCD00008527
• UNSPSC-Code: 12352100
• eCl@ss: 39011403
• PubChem Substanz-ID: 24900445
• NACRES: NA.22

Eigenschaften

• Dampfdichte: 4.1 (vs air)
• Dampfdruck: 4.5 mmHg ( 37.7 °C)
• Assay: 98%
• Selbstzündungstemp.: 959 °F
• Expl.-Gr.: 6.4 %
• Brechungsindex: n20/D 1.504 (lit.)
• bp: 168 °C (lit.)
• mp (Schmelzpunkt): −44 °C (lit.)
• Dichte: 0.876 g/mL at 20 °C (lit.)
• SMILES String: Cc1ccc(C)c(C)c1
• InChI: 1S/C9H12/c1-7-4-5-8(2)9(3)6-7/h4-6H,1-3H3
• InChIKey: GWHJZXXIDMPWGX-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

1,2,4-Trimethylbenzene, also known as Pseudocumene is an alkylated aromatics that is commonly used in the synthesis of polycyclic aromatic hydrocarbons. [1]

Anwendung

1,2,4-Trimethylbenzene can be used as a reactant to synthesize:

• 2,3,5-Trimethylbenzoquinone via oxidation reaction with phthaloyl peroxide under solvent-free conditions.[2]      
• 1,2,4,5-Tetramethylbenzene (durene) by methylation using syngas in the presence of Cu and Zn-based bifunctional catalysts.[3]
•  1,2,4-Oxadiazole derivatives via tandem reaction with nitroalkenes and nitriles in the presence of superacid CF₃SO₃H (TfOH).[4]

Sicherheitshinweise

• Piktogramme: GHS02,GHS08,GHS07,GHS09
• Signalwort: Danger
• H-Sätze: H226,H304,H315,H319,H332,H335,H411
• P-Sätze: P210 - P273 - P301 + P310 + P331 - P302 + P352 - P304 + P340 + P312 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 2
• Flammpunkt (°F): 118.4 °F - closed cup
• Flammpunkt (°C): 48.0 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter