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02321 Sigma-Aldrich

2,6-Pyridinedicarboxylic acid

for ion chromatography, ≥99.5% (T)

Synonym: DPA, DPAc, Dipicolinic acid

  • CAS Number 499-83-2

  • Empirical Formula (Hill Notation) C7H5NO4

  • Molecular Weight 167.12

  •  Beilstein/REAXYS Number 131629

  •  EC Number 207-894-3

  •  MDL number MFCD00006299

  •  eCl@ss 39151816

  •  PubChem Substance ID 329747412

  •  NACRES NB.21

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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Chromatography Reagents & Solvents, Ion Chromatography Reagents,
Quality Level   100
grade   for ion chromatography
description   anionic
assay   ≥99.5% (T)
mp   248-250 °C (dec.) (lit.)
solubility   H2O: 1%, clear
anion traces   phosphate (PO43-): ≤5 mg/kg
cation traces   Al: ≤5 mg/kg
  Ba: ≤5 mg/kg
  Ca: ≤50 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤2 mg/kg
  K: ≤100 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
SMILES string   OC(=O)c1cccc(n1)C(O)=O
InChI   1S/C7H5NO4/c9-6(10)4-2-1-3-5(8-4)7(11)12/h1-3H,(H,9,10)(H,11,12)
InChI key   WJJMNDUMQPNECX-UHFFFAOYSA-N

Description

Application

Metrohm IC application note AN-C-163 Cations in brine with minimal dilution and sub-μL injection.

Metrohm IC application note AN-C-172 Cations in snow from an open field.

Metrohm IC application note AN-C-143 Ammonia in addition to standard cations in maritime pore water.

Linkage

Visit the IC Portal to learn more

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Target organs 
Respiratory system
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
370.4 °F - closed cup
Flash Point(C) 
188 °C - closed cup

Documents

Certificate of Analysis (COA)

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Protocols & Articles
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