Pentagalloylglucose, or more specifically '1,2,3,4,6-penta-O-galloyl-β-D-glucose', is the pentagallic acid ester of glucose. It is a gallotannin and the precursor of ellagitannins.
via PubChem
{{chembox | Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 477199709 | Name = Pentagalloylglucose | ImageFile = Beta-penta-O-galloyl-glucose.svg | ImageSize = 250px | ImageName = Chemical structure of pentagalloylglucose | IUPACName = β-D-Glucopyranose pentakis(3,4,5-trihydroxybenzoate) | SystematicName = (2S,3R,4S,5R,6R)-6-{[(3,4,5-Trihydroxybenzoyl)oxy]methyl}oxane-2,3,4,5-tetrayl tetrakis(3,4,5-trihydroxybenzoate) | OtherNames = 1,2,3,4,6-Penta-O-galloyl-β-D-glucose1,2,3,4,6-Pentakis-O-galloyl-beta-D-glucosebeta-Penta-O-galloyl-glucosePGG1,2,3,4,6-Penta-O-galloyl-beta-D-glucose |Section1= |Section2= }} Pentagalloylglucose, or more specifically '1,2,3,4,6-penta-O-galloyl-β-D-glucose', is the pentagallic acid ester of glucose. It is a gallotannin and the precursor of ellagitannins.
Pentagalloylglucose can precipitate proteins, including human salivary α-amylase.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).