5-Chlorosalicylic 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)
C7H5ClO3 172.57 CAS RN: 321-14-2.—White to off-white powder.
Assay: When tested by thin-layer chromatography (see Chromatography 〈621〉) with the use of plates coated with chromatographic silica gel mixture and a developing system consisting of a mixture of cyclohexane, chloroform, and acetic acid (14:4:2), and examined visually and under long-wavelength UV light or iodine spray, a single spot is exhibited.
Melting Range 〈741〉: between 172° and 178°.
