2-(4-Sulfophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonic Acid, Trisodium Salt
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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)
(4,5-Dihydroxy-3-(p-sulfophenylazo)-2,7-naphthalenedisulfonic Acid, Trisodium Salt), C16H9N2O11S3Na3 —570.42—Red powder. Soluble in water.
