L127
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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)
A crown ether chemically bonded to a 5-μm particle size silica gel substrate. The active site is (S)- pseudo-18-crown-6-ether. (USP 1-Dec-2022)
