Protocatechuic Acid (3,4-Dihydroxybenzoic 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)
C7H6O4 154.12 CAS RN®: 99-50-3. - Use a suitable grade.
