S2
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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)
—Styrene-divinylbenzene copolymer having a nominal surface area of less than 50 m2 per g and an average pore diameter of 0.3 to 0.4 μm.

