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16201 Sigma-Aldrich

Tannic acid

puriss., meets analytical specification of USP, powder

Synonym: Gallotannin, Tannin

  • CAS Number 1401-55-4

  • Empirical Formula (Hill Notation) C76H52O46

  • Molecular Weight 1701.20

  •  Beilstein/REAXYS Number 8186396

  •  EC Number 215-753-2

  •  MDL number MFCD00066397

  •  PubChem Substance ID 329751144

  •  NACRES NA.21

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Properties

Related Categories Analytical/Chromatography, Pharmacopoeia, Pharmacopoeia A-Z, Pharmacopoeial Organics
Quality Level   200
grade   puriss.
form   powder
autoignition temp.   980 °F
quality   meets analytical specification of USP
impurities   dextrines, gum matters, in accordance
  resinous matters, in accordance
  ≤0.003% heavy metals (as Pb)
ign. residue   ≤0.1% (as SO4)
loss   ≤9% loss on drying, 105 °C, 2 h
mp   218 °C (lit.)
solubility   H2O: soluble 1 gm in 0.35ml
  glycerol: soluble 1gm in 1 ml (warm)
  acetone: very soluble
  alcohol: freely soluble (Diluted)
  alcohol: slightly soluble (Dehydrated)
  alcohol: very soluble
  benzene: insoluble
  carbon disulfide: insoluble
  carbon tetrachloride: insoluble
  chloroform: insoluble
  diethyl ether: insoluble
  hexane: insoluble
  petroleum ether: insoluble
cation traces   As: ≤3 mg/kg
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
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

Description

Packaging

100, 500 g in poly bottle

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 2
RTECS 
WW5075000
Flash Point(F) 
390.2 °F
Flash Point(C) 
199 °C

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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