Resazurin (Sodium)
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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)
C12H6NNaO4 251.17 CAS RN®: 62758-13-8.-A brownish-purple, crystalline powder. One g dissolves in 100 mL of water, forming a deep-violet-colored solution.
Hydrogen sulfide and other compounds containing the thiol group decolorize solutions of resazurin sodium, forming dihydroresorufin. When the decolorized solution is shaken in the presence of air, a rose color develops as a result of the formation of resorufin.
