Alias:?Chinese tannin; Gallotannic acid; Gallotannin; Galloylglucose; Glycerite; Penta NM digalloyl glucose; Quebracho; Tannins; 1,3,6-tris-O-(3,4,5-trihydroxybenzoyl)hexopyranose; 1,2,3,4,6-pentakis-O-[(3,4-dihydroxy-5-{[(3,4,5-trihydroxyphenyl)carbonyl]oxy}phenyl)carbonyl]hexopyranose

Molecular formula:?C₇₆H₅₂O₄₆

Molecular weight:?1701.18

CAS No.:?1401-55-4

Properties:?light yellow to light brown irregular powder, with special odor. Soluble in one part of water or ethyl alcohol, soluble in acetone, insolbule in trichloromethane and diethyl ether.

Specification:?meets national standard GB5308-85。

Main technical index:

Annic acid content: ≥81%

Drying loss: ≤ 9.0%

Water insoluble matter: ≤0.6%

Total color: ? ≤2.0

Main uses

(1)This product can be widely in metal rust prevention, slurry treatment agent and pharmaceutical industry.

(2)Textile dyeing and printing.

(3)Raw material for drugs, such as for trimethoprim, etc.

(4)Raw material for chemicals, such as gallic acid, and pyrogallol, etc.

Storage:?in airtight container.

Packing:?plastic woven bag, net weight 25kg/bag.

Ddible tannic acid

Alias:?Chinese tannin; Gallotannic acid; Gallotannin; Galloylglucose; Glycerite; Penta NM digalloyl glucose; Quebracho; Tannins; 1,3,6-tris-O-(3,4,5-trihydroxybenzoyl)hexopyranose; 1,2,3,4,6-pentakis-O-[(3,4-dihydroxy-5-{[(3,4,5-trihydroxyphenyl)carbonyl]oxy}phenyl)carbonyl]hexopyranose

Molecular formula:?C₇₆H₅₂O₄₆

Molecular weight:?1434-1701.18

Properties:?light yellow powder, with special odor. Soluble in one part of water or ethyl alcohol, soluble in acetone, insolbule in trichloromethane and diethyl ether.

Specification:?meets FDA “food chemical specification” 3 edition, American food FCC-IV standard.

Main technical index:

Drying loss: ≤ 9.0%

Annic acid content: ≥92%

Ignition residue: ≤1.0%

Arsenic: ≤3PPM

Heavy metal: ≤0.002%

Gum or dextrin test: Qualified

Resin substance test: Qualified

Main uses:?antixidant for food, preservative, clear agent for beverage and liquor, decolorant for soy sauce.

Storage:?in airtight container.

Packing:?plastic woven bag, net weight 25kg/bag.