2,6-Dichlorophenylacetic Acid
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This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition
Issued and maintained by the United States Pharmacopeial Convention (USP)
C8H6Cl2O2 205.04 CAS RN®: 6575-24-2.—White powder.
Assay: Inject an appropriate specimen into a gas chromatograph (see Chromatography〈621〉) equipped with a flame-ionization detector, helium being used as the carrier gas. The following conditions have been found suitable: a 0.25-mm × 30-m capillary column coated with a 1-μm layer of phase G2; the injection port temperature is maintained at 250°; the detector temperature is maintained at 300°; and the column temperature is maintained at 150° and programmed to rise 10° per minute to 280°. The area of the C H Cl O peak is not less than 97% of the total peak area.
