L-Methionine Sulfoxide
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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)
(L-2-Amino-4-(methylsulfinyl)butanoic acid), C5H11NO3S 165.21 CAS RN®: 3226-65-1.—Use a suitable grade.

