Skip to Content
Merck
CN
All Photos(4)

Documents

403040

Sigma-Aldrich

Tannic acid

ACS reagent

Sign Into View Organizational & Contract Pricing
All Photos(4)
Synonym(s):
Gallotannin, Tannin
Empirical Formula (Hill Notation):
C76H52O46
CAS Number:
1401-55-4
Molecular Weight:
1701.20
Beilstein:
8186396
EC Number:
215-753-2
MDL number:
MFCD00066397
UNSPSC Code:
12352100
PubChem Substance ID:
24865158
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

autoignition temp.

980 °F

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%

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

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

InChI key

LRBQNJMCXXYXIU-PPKXGCFTSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

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.

WGK

WGK 2

Flash Point(F)

390.2 °F

Flash Point(C)

199 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Tannic acid as corrosion inhibitor for metals and alloys.
Kusmierek E and Chrzescijanska E.
Materials and Corrosion, 66(2), 169-174 (2013)
Reviewing the tannic acid mediated synthesis of metal nanoparticles.
Ahmad T.
Journal of Nanotechnology, 2014 (2014)
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: Chemistry, Analysis, and Toxicology: An Episode in the Pharmaceutics of Radiology.
Krezanoski JZ.
Radiology, 87(4), 655-657 (1966)
Deproteinization of bacterial genomic and plasmid DNAs by tannic acid.
van Huynh, N.
Journal of Microbiological Methods, 75(2), 379-381 (2008)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service