442249

1,4-Difluorobenzene

analytical standard

• Empirical Formula (Hill Notation): C₆H₄F₂
• CAS Number: 540-36-3
• Molecular Weight: 114.09
• Beilstein: 1904541
• EC Number: 208-742-9
• MDL number: MFCD00000344
• UNSPSC Code: 12352200
• PubChem Substance ID: 24867755

Properties

• grade: analytical standard
• Quality Level: 100
• CofA: current certificate can be downloaded
• packaging: ampule of 1000 mg
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• refractive index: n20/D 1.441 (lit.)
• bp: 88-89 °C (lit.)
• mp: −13 °C (lit.)
• density: 1.11 g/mL at 25 °C (lit.)
• application(s): environmental

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).[1] 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.[2]

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

Safety Information

• Pictograms: GHS02
• Signal Word: Danger
• Hazard Statements: H225
• Precautionary Statements: P210
• Hazard Classifications: Flam. Liq. 2
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 35.6 °F - closed cup
• Flash Point(C): 2.0 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves