CAS:1869-24-5 | 2-(Trifluoromethyl)benzenesulfonamide

2-(Trifluoromethyl)benzenesulfonamide (CAS 1869-24-5) is a fluorine-containing organic compound with a chemical structure of C₇H₆F₃NO₂S and a molecular weight of 225.19. The following is an integration of its core information: 2-(Trifluoromethyl)benzenesulfonamide appears as a white to light yellow crystalline powder, with a melting point of 120-122°C and a density of 1.47 g/cm³. It is easily soluble in polar organic solvents such as methanol, ethanol, and acetone, and slightly soluble in water. Its molecular structure contains a benzene ring, a trifluoromethyl group (-CF₃) and a sulfonamide group (-SO₂NH₂), of which the sulfonamide group is acidic and can participate in acid-base reactions.

• Pharmaceutical intermediates: 2-(Trifluoromethyl)benzenesulfonamide is a key intermediate used in the synthesis of the anti-androgen drug Casodex and the herbicide penoxsulam, for example, it is used to construct imidazopyridine compounds through oxidative sulfonamide methylation (such as Zhao et al., 2019).
• Catalytic reactions: It participates in ester synthesis, aldehyde condensation and other reactions as an acidic catalyst, for example, in the esterification reaction of acetic acid and ethanol, CO₂-induced phase separation is used to improve the conversion rate.

• 2-(Trifluoromethyl)benzenesulfonamide should be kept away from fire and heat sources and handled in a well-ventilated area.
• When using or handling, appropriate protective gloves, glasses and protective clothing should be worn.
• It should be stored in a dry, cool, ventilated place away from other chemicals and flammable materials.

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