3-Phenylphenol
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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)
(m-Phenylphenol), C6H5C6H4OH 170.21 CAS RN®: 580-51-8.-White to off-white, crystalline powder.
Assay: Inject an appropriate specimen into a suitable 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 x 30-m capillary column coated with G1; the injection port temperature is maintained at 250°; the column temperature is maintained at 150° and programmed to rise 15° per minute to 250°; and the detector temperature is maintained at 310°. The area of the 3-phenylphenol peak is not less than 98% of the total peak area.
MELTING RANGE (741): between 76° and 79°.
