Malachite Green Oxalate
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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)
[C23H25N2+]2 · [C2HO4−]2 · C2H2O4 - 927.00 - The oxalate salt, crystallized with oxalic acid, of a triphenylmethane dye. Dark-green powder, having a metallic luster. Sparingly soluble in water; soluble in glacial acetic acid. Transition interval: from pH 0.0 to 2.0. Color change: from yellow to green.
