Butyl Benzoate
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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)
C11H14O2 178.23 CAS RN: 136-60-7.—Thick, oily, colorless to pale yellow liquid. Practically insoluble in water; soluble in alcohol and in ether.
Assay: When examined by gas-liquid chromatography, it shows a purity of not less than 98%. The following conditions have been found suitable for assaying it: use a 3-mm × 1.8-m stainless steel column packed with liquid phase G4 on support S1A. Helium is the carrier gas, the injection port temperature is maintained at 180°, the column temperature is maintained at 190°, and the flame-ionization detector is maintained at 280°. The retention time is about 15 minutes.
Refractive Index 〈831〉: between 1.4980 and 1.5000, at 20°.
