1401-55-4 | Tannic Acid

Chemical type

• Natural polyphenol
• Hydrophilic precursor for nanospheres

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• Polyphenolic compound (plant-derived, e.g., from tea and fruits)

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Key properties

• Contains multiple hydroxyl groups for hydrogen bonding
• UV absorption at 220 nm (π-π) and 278 nm (n-π)
• Reacts with APTES via Michael addition and Schiff base formation
• Forms quinone and imine bonds (absorption at 325 nm)

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• Strong antibacterial activity (penetrates bacterial cell walls, disrupts metabolism, inhibits nutrient uptake like sugars/amino acids)
• Antioxidant, anti-inflammatory, antimutagenic
• Effective against gram-positive bacteria such as Staphylococcus aureus
• Low toxicity as a natural compound

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• Reactant in synthesis of TAP NPs under weak alkaline conditions
• Contributes hydrophilic groups to membrane surface for hydration layer
• Enhances antifouling in oil-water emulsions

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• Loaded onto HA-zirconia scaffolds for inherent antibacterial properties
• Prevents biofilm formation and infections on dental implant surfaces
• Alternative to synthetic antibiotics in biomedical scaffolds

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Classification by use

• Chemicals used in nanomaterial synthesis
• Chemicals for surface modification and antifouling

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• Natural antibacterial agents
• Antioxidants and therapeutics in bone/dental tissue engineering

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A trustworthy factory and manufacturer

1. [Cite:1] Construction of dual-heterogeneous membrane surface via nanosphere-mediated surface segregation for oil-water separation, Advanced Membranes, Volume 7, June 2026, 100205
2. [Cite:2] Tannic Acid-Loaded Antibacterial Hydroxyapatite-Zirconia Composite for Dental Applications, Crystals, 2025, 15(5), 396