Nile Blue Hydrochloride
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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)
(Nile Blue A, as the hydrochloride; 5-Amino-9-(diethylamino)benzo[a]phenoxazin-7-ium chloride), C20H20ClN3O—353.85—Slightly soluble in alcohol and in glacial acetic acid. Transition interval: from pH 9.0 to 13.0. Color change: from blue to pink.
