Tannic acid

Name: Tannic acid
Brand: SIAL

ACS reagent grade, powder or solid

Synonym(s):

Gallotannin, Tannin

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About This Item

Empirical Formula (Hill Notation):

C₇₆H₅₂O₄₆

CAS Number:

1401-55-4

Molecular Weight:

1701.20

NACRES:

NA.21

PubChem Substance ID:

24865158

UNSPSC Code:

12352100

EC Number:

215-753-2

MDL number:

MFCD00066397

Beilstein/REAXYS Number:

8186396

Product Name

Tannic acid, ACS reagent

InChI key

LRBQNJMCXXYXIU-PPKXGCFTSA-N

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

SMILES string

Oc1cc(cc(O)c1O)C(=O)Oc2cc(cc(O)c2O)C(=O)OC[C@H]3O[C@@H](OC(=O)c4cc(O)c(O)c(OC(=O)c5cc(O)c(O)c(O)c5)c4)[C@H](OC(=O)c6cc(O)c(O)c(OC(=O)c7cc(O)c(O)c(O)c7)c6)[C@@H](OC(=O)c8cc(O)c(O)c(OC(=O)c9cc(O)c(O)c(O)c9)c8)[C@@H]3OC(=O)c%10cc(O)c(O)c(OC(=O)c%11cc(O)c(O)c(O)c%11)c%10

grade

ACS reagent

form

powder or solid

autoignition temp.

980 °F

Quality Level

200

impurities

≤0.003% Lead

ign. residue

≤0.5%

loss

≤12.0% loss on drying, 105°C

mp

218 °C (lit.)

cation traces

Zn: ≤0.005%
heavy metals: ≤0.003%

functional group

ester
ether

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Related Categories

Acids

Chemistry & Biochemicals

Application

Tannic acid may be used in the following processes:

Synthesis of ferric tannate complexes by reacting with metallic iron.
As a protein deproteinizing agent in genomic and plasmid DNAs preparation.
As a reductant in the synthesis of metal nano particles.

General description

Tannic acid (TA) is a natural, non-toxic organic acid with corrosion inhibitive property for metals and alloys. A chemiluminescence (CL) system of KIO₄ (potassium periodate)–H₂O₂ (hydrogen peroxide)–Tween40 has been employed in the detection of tannic acid in industrial wastewater. Tannic acid hydrolyzes to form mainly glucose and gallic acid. Its astringent property is due to the presence of polyphenolic groups.

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

390.2 °F

flash_point_c

199 °C

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number

0000495548

0000482872

0000465419

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Reviewing the tannic acid mediated synthesis of metal nanoparticles.

Ahmad T.

Journal of Nanotechnology, 2014 (2014)

Tannic acid as a natural antioxidant compound: Discovery of a potent metabolic enzyme inhibitor for a new therapeutic approach in diabetes and Alzheimer's disease.

Fikret Türkan et al.

Journal of biochemical and molecular toxicology, 33(8), e22340-e22340 (2019-04-12)

Multiple studies have been recorded on the synthesis and design of multi-aim anti-Alzheimer molecules. Using dual butyrylcholinesterase/acetylcholinesterase inhibitor molecules has attracted more interest in the therapy for Alzheimer's disease. In this study, a tannic acid compound showed excellent inhibitory effects

Tannic acid as corrosion inhibitor for metals and alloys.

Kusmierek E and Chrzescijanska E.

Materials and Corrosion, 66(2), 169-174 (2013)

On the tannic acid interaction with metallic iron.

Iglesias J, et al.

Hyperfine Interactions, 134(1), 109-114 (2001)

Deproteinization of bacterial genomic and plasmid DNAs by tannic acid.

van Huynh, N.

Journal of Microbiological Methods, 75(2), 379-381 (2008)

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