Tannic Acid

• CAT Number: R062964
• CAS Number: 1401-55-4
• Molecular Formula: C₇₆H₅₂O₄₆
• Molecular Weight: 1701.20
• Purity: ≥95%
• Synonyms: Tannic Acids; Tannic Acids; Tannin analysis; AL; AL (tannin); Arbor Lock 20; BM 539; Bondtite 241; Bondtite 345; Bondtite 645; Brewtan; Brewtan C; Colatan GT 100; Crown ATO; DT-R 240; Excellence Vintage; F-Tannin; FS 500M; Fintan OP; Floctan 1; Floct
• Target: Potassium Channel
• Storage: -20°C
• IUPAC Name: [2,3-dihydroxy-5-[[(2R,3R,4S,5R,6S)-3,4,5,6-tetrakis[[3,4-dihydroxy-5-(3,4,5-trihydroxybenzoyl)oxybenzoyl]oxy]oxan-2-yl]methoxycarbonyl]phenyl] 3,4,5-trihydroxybenzoate
• InChI: InChI=1S/C76H52O46/c77-32-1-22(2-33(78)53(32)92)67(103)113-47-16-27(11-42(87)58(47)97)66(102)112-21-52-63(119-72(108)28-12-43(88)59(98)48(17-28)114-68(104)23-3-34(79)54(93)35(80)4-23)64(120-73(109)29-13-44(89)60(99)49(18-29)115-69(105)24-5-36(81)55(94)37(82)6-24)65(121-74(110)30-14-45(90)61(100)50(19-30)116-70(106)25-7-38(83)56(95)39(84)8-25)76(118-52)122-75(111)31-15-46(91)62(101)51(20-31)117-71(107)26-9-40(85)57(96)41(86)10-26/h1-20,52,63-65,76-101H,21H2/t52-,63-,64+,65-,76+/m1/s1
• InChIKey: LRBQNJMCXXYXIU-PPKXGCFTSA-N
• SMILES: C1=C(C=C(C(=C1O)O)O)C(=O)OC2=CC(=CC(=C2O)O)C(=O)OC[C@@H]3[C@H]([C@@H]([C@H]([C@@H](O3)OC(=O)C4=CC(=C(C(=C4)OC(=O)C5=CC(=C(C(=C5)O)O)O)O)O)OC(=O)C6=CC(=C(C(=C6)OC(=O)C7=CC(=C(C(=C7)O)O)O)O)O)OC(=O)C8=CC(=C(C(=C8)OC(=O)C9=CC(=C(C(=C9)O)O)O)O)O)OC(=O)C1=CC(=C(C(=C1)OC(=O)C1=CC(=C(C(=C1)O)O)O)O)O

Tannic acid（Cat No.:R062964）is a naturally occurring polyphenol composed of multiple galloyl units linked to a glucose core. It is widely recognized for its astringent properties and strong antioxidant activity. Found in various plants, it is used across industries—including pharmaceuticals, food, cosmetics, and leather processing. In medical and research contexts, tannic acid serves as a protein precipitant, antiviral agent, and a stabilizer in nanoparticle synthesis. Its ability to chelate metal ions and interact with proteins makes it useful in wound care, ink formulations, and natural product chemistry.