Tannic acid | CAS No. 1401-55-4

Tannic acid

Basic Information

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CAS Number

1401-55-4

Molecular Formula

C76H52O46

Molecular Weight

1701.21 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Esters

Basic Chemical Raw Materials Organic Chemicals Ethers

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Dyes and Pigments Organic Dyes

Fine Chemicals Surfactants Anionic Surfactants

Laboratory Chemicals Research Chemicals Biochemical Reagents

Basic Physical Properties

Melting Point

218 °C

Boiling Point

862.78°C (rough estimate)

Water Solubility

250G/L(20ºC)

Solubility

ethanol: soluble100mg/mL, yellow to brown

Refractive Index

1.7040 (estimate)

Odor

FAINT CHARACTERISTIC ODOR

SMILES

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Oc1cc(cc(O)c1O)C(=O)Oc1cc(cc(O)c1O)C(=O)OCC1OC(OC(=O)c2cc(O)c(O)c(OC(=O)c3cc(O)c(O)c(O)c3)c2)C(OC(=O)c2cc(O)c(O)c(OC(=O)c3cc(O)c(O)c(O)c3)c2)C(OC(=O)c2cc(O)c(O)c(OC(=O)c3cc(O)c(O)c(O)c3)c2)C1OC(=O)c1cc(O)c(O)c(OC(=O)c2cc(O)c(O)c(O)c2)c1

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

InChIKey

LRBQNJMCXXYXIU-UHFFFAOYSA-N

LogP

4.838100000000021

Topological Polar Surface Area

777.9800000000005 Å²

Hydrogen Bond Donor/Acceptor

25 / 46

Complexity

3570

Safety Information

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GHS Hazard Pictograms

H412

H303

Hazard Statement

H412 Harmful to aquatic life with long lasting effects
Hazardous to the aquatic environment, long-term hazard

H303 May be harmful if swallowed
Acute toxicity, oral

Storage Conditions

2-8℃

Stability

Stable. Incompatible with metallic salts, strong oxidizing agents, iron and other heavy metals.

Sensitiveness

Air & Light Sensitive

Synonyms & References

English

Tannic acid
Chinese tannin
Gallotannic acid
Gallotannin
Galloylglucose
Glycerite
Penta NM digalloyl glucose
Quebracho
Tannin
Tannins
CHINESE TANNIN NF
Tannicacid(Technical)
TANNIN(TANNIC ACID)(RG)
TANNIN(TANNIC ACID)(RG) PrintBack
PH Dane-salt
tannin extract
Gallotannin Tannin
Tannic Acid (AS)
Tannic acid, ACS reagent
tannic
Brewtan
sweetgum
Vitanil B
Taic acid
Brewtan SI
acid,tannic
Chinese gallotannin
MLS001335996
SMR000857330
DSSTox_CID_6076
DSSTox_RID_78006

MDL Number

MFCD00066397

Customs Code

32019090

FAQ

What is Tannic acid (CAS: 1401-55-4)?

Tannic acid, with the CAS number 1401-55-4, is a polyphenolic compound commonly found in plant-based materials. It has the chemical formula C76H52O46 and is known for its astringent properties. Tannic acid is a natural antioxidant and is soluble in water and alcohol. It is used in various industries due to its ability to bind proteins and its antimicrobial effects.

What are the main uses of Tannic acid (CAS: 1401-55-4)?

Tannic acid has diverse applications in pharmaceuticals, food, and industry. It is used in drug formulations for its antiseptic and astringent properties. In the food industry, it serves as a natural preservative and flavoring agent. It is also employed in leather tanning, ink production, and as a component in certain cosmetics. Researchers use it for its antioxidant and binding capabilities in various studies.

Is Tannic acid (CAS: 1401-55-4) safe?

Tannic acid is generally considered safe when used in appropriate amounts and under proper handling conditions. It has low toxicity and is commonly used in food and pharmaceutical products. However, high concentrations may cause skin irritation or gastrointestinal discomfort. Safety standards recommend using protective gloves and ensuring proper ventilation during handling to minimize exposure risks.

How should Tannic acid (CAS: 1401-55-4) be stored?

Tannic acid should be stored in a cool, dry place away from direct light. It is best kept in a sealed, airtight container to prevent moisture absorption and degradation. The ideal storage temperature is below 25°C, and humidity should be kept low to maintain its stability. Avoid exposure to strong oxidizing agents to ensure product integrity.