Capric 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)
(Decanoic Acid), C10H20O2 172.26 CAS RN®: 334-48-5.-White, solidified melt or fragments. Soluble in alcohol, in chloroform, and in ether, practically insoluble in water.
Assay: Inject an appropriate sample dissolved in acetone into a gas chromatograph (see Chromatography (621)) that is equipped with a flame-ionization detector and contains a 0.53-mm x 30-m capillary column coated with a layer of phase G25. The carrier gas is helium, flowing at a rate of 9 mL. per minute. The chromatograph is programmed as follows. Initially the column temperature is equilibrated at 150°, then the temperature is increased at a rate of 10° per minute to 250°. The injection port temperature is maintained at 240°, and the detector temperature at 265°. The area of the capric acid peak is not less than 98.5% of the total peak area.
MELTING RANGE (741): between 30° and 33°.
