Gallic Acid, Anhydrous, also known as 3,4,5-trihydroxybenzoic acid, is a type of phenolic acid that is found in sumac, gallnuts and tea leaves, and is used in the pharmaceutical industry. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use. These materials may or may not have a Certificate of Analysis available.