Mesityl Oxide
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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)
C6H10O 98.14 CAS RN®: 141-79-7. -Colorless liquid.
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 × 30-m capillary column coated with a 1-μm layer of phase G2; the injection port temperature is maintained at 150°; the detector temperature is maintained at 300°; the column temperature is maintained at 50° and programmed to rise 10° per minute to 200°. The area of the C H O peak is not less than 98% of the total peak area.
Refractive Index 〈831〉: between 1.443 and 1.447 at 20°.
