442249

1,4-Difluorobenzene

analytical standard

• Formule empirique (notation de Hill): C₆H₄F₂
• Numéro CAS: 540-36-3
• Poids moléculaire : 114.09
• Numéro Beilstein : 1904541
• Numéro CE : 208-742-9
• Numéro MDL: MFCD00000344
• Code UNSPSC : 12000000
• ID de substance PubChem : 24867755

Propriétés

• Qualité: analytical standard
• Niveau de qualité: 100
• CofA (certificat d'analyse): current certificate can be downloaded
• Conditionnement: ampule of 1000 mg
• Technique(s): HPLC: suitable; gas chromatography (GC): suitable
• Indice de réfraction: n20/D 1.441 (lit.)
• Point d'ébullition: 88-89 °C (lit.)
• Pf: −13 °C (lit.)
• Densité: 1.11 g/mL at 25 °C (lit.)
• Application(s): environmental
• Format: neat
• Température de stockage: 2-30°C
• Chaîne SMILES: Fc1ccc(F)cc1
• InChI: 1S/C6H4F2/c7-5-1-2-6(8)4-3-5/h1-4H
• Clé InChI: QUGUFLJIAFISSW-UHFFFAOYSA-N

Description

Application

1,4-Difluorobenzene has been used as a dopant, in order to ionize the soluble organic species present in huolinguole lignite coal by using atmospheric pressure photoionization technique coupled with mass spectrometry (APPI-MS). It also plays role of an internal standard in investigating the ¹⁹F nuclear magnetic resonance (NMR) spectrum of electrophilic trifluoromethyl thiolating agents prepared from nucleophilic tetramethylammonium trifluoromethyl thiolate.

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

Informations sur la sécurité

• Pictogrammes: GHS02
• Mention d'avertissement: Danger
• Mentions de danger: H225
• Conseils de prudence: P210
• Classification des risques: Flam. Liq. 2
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): 35.6 °F - closed cup
• Point d'éclair (°C): 2.0 °C - closed cup
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter