Hunan Linong Technology and Trade Co., Ltd.

Tannic acid

• Category :

  Inorganic chemicals/Inorganic acids

• Synonyms :

  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;

• CAS NO :

  1401-55-4

• EC NO :

  215-753-2

• Molecular Formula :

  C₇₆H₅₂O₄₆

• Molecular Weight :

  1701.1985

• Main Specifications :

  off-white powder, conform to National Standard GB5308-85

• InChI :

  InChI=1/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

• Packing :

  25KG/woven bag

• Product description :

  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.

• Uses :

  used as preservative and antifouling in industry, as additive and filler in petrochemical engineering, as adhesive and surface coating in timber industry and used in tanned leather and blue ink making

• Molecular Structure :