Dihydroquinidine Hydrochloride
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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)
C20H27ClN2O2 362.89 CAS RN: 1476-98-8.—Rhombic plates. Freely soluble in methanol and in chloroform.
Assay
Mobile phase: Prepare a mixture of water, acetonitrile, diethylamine, and methanesulfonic acid (860:100:20:20).
Procedure: Inject about 20 μL into a suitable liquid chromatograph (see Chromatography 〈621〉) equipped with a 235-nm detector and a 4.6- mm × 15-cm column that contains packing L1. The flow rate is about 1.5 mL per minute. The area of the C20H27ClN2O2 peak is not less than 97.5% of the total peak area.
