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Jiurui Biology & Chemistry Co., Ltd.

Hunan, China

CNY 123.3 Million

129870 m²

100-500 people

Main Products: Tannic Acid / Gallic Acid / Gallic Acid Monohydrate / Propyl Gallate / Pyrogallol / Resveratrol

Hunan, China

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Tannic Acid / CAS 1401-55-4

Industrial grade：≥81%

Food grade：93%-98%

Pharmaceutical grade：≥90%

OVERVIEW

Uses

Packaging

25 KG/Fibre Drum; 25 KG/Paper Bag

Lead Time

14-30 days

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DESCRIPTION

Tannic Acid

Product Name: Tannic Acid

Alias: Tannin, Gallic Tannin

Molecular Formula: C₇₆H₅₂O₄₆

Molecular Weight: 1701.18

Structural formula:

Property : Light yellow or light brown powder, oxidized in the air, the color becomes darker, odorless and astringent. It is soluble in water, ethanol, acetone, ethyl acetate, but insoluble in chloroform or ether.

Specifications: Comply with national industry standards LY-T 1300, LY-T1640, LY-T1641; US Food and Drug Administration "Food Chemistry Specification" 5th edition and US Food Chemistry Code standards; US Food Standards; British Pharmacopoeia.

Technical index:

Specification	Industrial grade	Pharmaceutical grade	Food grade
Appearance	Yellow powder	Light yellow powder	Light yellow powder
Content	≥81%	≥90%	93%-98%
Loss on drying	≤9%	≤9%	≤9%
Residue on ignition	——	≤1%	≤1%
Heavy metal	——	≤30ppm	≤20ppm
Other Index	See COA	See COA	See COA

Uses:

(1) Used for the extraction of germanium, the manufacture of acid iron ink, metal rust removal, and the raw material of mud treatment agent for oil drilling. It can produce gallic acid and pyrogallic acid, and can also be used as leather tanning agent, mordant, rubber coagulant, protein agent, alkaloid precipitation agent.

(2) Medicinal tannic acid has antibacterial, enzyme-removing and astringent effects. It is used in antibacterial, tinea, detoxification, dysentery and other medicinal preparations, and also used to synthesize sulfonamide synergists.

(3) Used in cosmetics, food antioxidants, clarifying agents for low alcohol alcohols, oil antioxidants, and also used in bromelain food processing.

Storage: Avoid moisture and light, sealed tightly, no contact with metal.

Product validity: two years.

Packing: Packed in kraft paper bag or cardboard drum, net weight 25 kg.

Typical Properties

For tannery tannery, tannery and sheep skins. Suitable store in a cool, dry, and ventilated room. It is best to work with other tanning agents.

CAS No.

1401-55-4

Formula

C76H52O46

Molecular Mass

1701.20000

Exact Mass

1700.17000

PSA

777.98000

Logp

4.83810

IUPAC

[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

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

Matter Classification

organic

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