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Pyridine-2,6-dicarboxylic acid

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Pyridine-2,6-dicarboxylic acid Basic information

Product Name:
Pyridine-2,6-dicarboxylic acid
Synonyms:
  • Pyridine-2,6-dicarboxylic acid 98%
  • 2,6-Pyridinedicarboxylic acid solution, Eluent concentrate for IC, 0.02M in water
  • 2,6-PyridinedicarboxylicAcid99%
  • Pyridine-2,6-dicarboxylicacid,98%
  • IFLAB-BB F0451-0137
  • LABOTEST-BB LT00848023
  • RARECHEM AL BO 1335
  • PYRIDINE-2,6-DICARBOXYLIC ACID
CAS:
499-83-2
MF:
C7H5NO4
MW:
167.12
EINECS:
207-894-3
Product Categories:
  • Building Blocks
  • C7
  • Carboxylic Acids
  • Carboxylic Acids
  • Chemical Synthesis
  • Heterocyclic Building Blocks
  • blocks
  • Carboxes
  • Pyridines
  • Pyridine
  • pyridine derivative
  • Pyridines, Pyrimidines, Purines and Pteredines
  • Organic acids
  • bc0001
  • 499-83-2
  • john's
Mol File:
499-83-2.mol
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Pyridine-2,6-dicarboxylic acid Chemical Properties

Melting point:
248-250 °C (dec.)(lit.)
Boiling point:
295.67°C (rough estimate)
Density 
1.5216 (rough estimate)
vapor pressure 
<0.01 hPa (20 °C)
refractive index 
1.6280 (estimate)
Flash point:
188 °C
storage temp. 
Store below +30°C.
solubility 
H2O: 1%, clear
pka
2.16(at 25℃)
form 
Crystalline Powder
color 
White
PH
2.0 (5g/l, H2O, 20℃)
Water Solubility 
5 g/L (20 ºC)
BRN 
131629
InChIKey
WJJMNDUMQPNECX-UHFFFAOYSA-N
LogP
0.3 at 25℃ and pH1.8
CAS DataBase Reference
499-83-2(CAS DataBase Reference)
NIST Chemistry Reference
2,6-Pyridinedicarboxylic acid(499-83-2)
EPA Substance Registry System
2,6-Pyridinedicarboxylic acid (499-83-2)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38-37/38-36
Safety Statements 
26-36-24/25-37
WGK Germany 
3
Autoignition Temperature
620 °C
TSCA 
T
HazardClass 
IRRITANT
HS Code 
29333999
Toxicity
LD50 orally in Rabbit: 10500 mg/kg

MSDS

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Pyridine-2,6-dicarboxylic acid Usage And Synthesis

Description

2,6-Pyridinedicarboxylic acid (PDCA) contains two carboxylic groups on each side of the pyridine ring. Both groups form rigid 120° angles with the pyridine. Carboxylic functionality could be complex and bind with metals under certain conditions. Numerous metal?organic frameworks, metal complexes, drugs, and CPs based on PDCA were developed for applications related to gas storage, separation, catalysis, magnetism, and sensing[1]. Shao et al. researched the solubility of PDCA in methanol, ethanol, n-propanol, isopropanol, THF, 1,4-dioxane, acetic acid, formic acid, acetonitrile, ethyl acetate, and toluene. They found that PDCA solubility was the highest in methanol but the lowest in acetonitrile.

Chemical Properties

White crystalline powder. Insoluble in ethanol.

Uses

Pyridine-2,6-dicarboxylic acid is used in the preparation of dipicolinato ligated lanthanide and transition metal complexes. It acts as a chelating agent for chromium, zinc, manganese, copper, iron and molybdenum. Its calcium-dipcolinic acid complex is used to protect deoxyribonucleic acid (DNA) from heat denaturation which enhances the DNA stability. It plays an important role as a marker for the effectiveness of sterilization.

Definition

ChEBI: Pyridine-2,6-dicarboxylic acid is a pyridinedicarboxylic acid carrying two carboxy groups at positions 2 and 6. It has a role as a bacterial metabolite. It is a conjugate acid of a dipicolinate(1-).

Application

2,6-Pyridinedicarboxylic acid is an amphoteric polar metabolite produced by many bacterial and fungal species. Prior to its discovery as a microbial metabolite, dipicolinic acid had long been recognised as a chelating agent for many metal ions. Wide distribution of dipicolinic acid among microbes makes it an important dereplication standard in discovery. Dipicolinic acid reaches high concentrations (~10% w/w) in Bacillus endospores aiding heat resistance and is used in laboratories as a marker for the effectiveness of sterilisation.

Preparation

pyridine-2,6-dicarboxylic acid was synthesized by hydrolyzing of ester prepared by coupling of diethyl 4-hydroxypyridine-2,6-dicarboxylate to bis-halohydrocarbon or bis-halide.
Synthesis of Novel Derivatives of Pyridine‐2,6‐dicarboxylic Acid

Synthesis Reference(s)

Synthetic Communications, 22, p. 2691, 1992 DOI: 10.1080/00397919208021669

General Description

This certified eluent concentrate for ion chromatography is traceable by potentiometric titration to NIST Standard Reference Material. It is certified in accordance with ISO Guide 31. All details about exact content, uncertainty, traceability and expiry date are described in the certificate.

References

[1] Xianzhao Shao. Solubility Thermodynamic Modeling and Solubility Parameter of 2,6- Pyridinedicarboxylic Acid in Selected Solvents at Different Temperatures[J]. J. Chem. Eng. Data, 2021. DOI:org/10.1021/acs.jced.1c00200.

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