Calconcarboxylic Acid
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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)
(2-Naphthalenecarboxylic acid, 3-hydroxy-4-[(2-hydroxy-4-sulfo-1-naphthalenyl)azo]; Calcon-3-carboxylic Acid; Cal-Red), C21H14N2O7S 438.42 CAS RN: 3737-95-9.—Use a suitable grade.
