Tannic acid

SIAL/403040 - ACS reagent

Synonym: Gallotannin; Tannin

CAS Number: 1401-55-4
Empirical Formula (Hill Notation): C₇₆H₅₂O₄₆
Molecular Weight: 1701.20
EC Number: 215-753-2
MDL Number: MFCD00066397
Linear Formula: C₇₆H₅₂O₄₆
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-403040-50G	50 g	$27.60 1/EA	Add To Favorites
45-403040-100G	100 g	$41.50 1/EA	Add To Favorites
45-403040-500G	500 g	$160.00 1/EA	Add To Favorites

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 403040-500G

Properties
Descriptions
Safety Info.
Basic Data

autoignition temp.	980 °F
cation traces	heavy metals: ≤0.003%
	Zn: ≤0.005%
grade	ACS reagent
ign. residue	≤0.5%
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
loss	≤12.0% loss on drying, 105°C
mp	218 °C (lit.)
Quality Level	200
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

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.
Packaging:	50, 100, 500 g in glass bottle

Risk Statements	52/53
Safety Statements	61
RIDADR	NONH for all modes of transport
WGK Germany	WGK 2
Flash Point(F)	390.2 °F
Flash Point(C)	199 °C

mp	218 °C (lit.)
UNSPSC	12352100

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