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384305

Sigma-Aldrich

6-Hydroxypyridine-2-carboxylic acid

95%

Synonym(s):

6-Hydroxypicolinic acid, 6-Hydroxypyridine-2-carboxylic acid

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About This Item

Empirical Formula (Hill Notation):
C6H5NO3
CAS Number:
19621-92-2
Molecular Weight:
139.11
Beilstein/REAXYS Number:
115842
MDL number:
MFCD00192220
UNSPSC Code:
12352100
PubChem Substance ID:
24863659
NACRES:
NA.22

assay

95%

form

solid

mp

270 °C (dec.) (lit.)

functional group

carboxylic acid

SMILES string

OC(=O)c1cccc(O)n1

InChI

1S/C6H5NO3/c8-5-3-1-2-4(7-5)6(9)10/h1-3H,(H,7,8)(H,9,10)

InChI key

VRCWSYYXUCKEED-UHFFFAOYSA-N

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General description

6-Hydroxypyridine-2-carboxylic acid (6HPA, 6-Hydroxypicolinic acid) is a picolinic acid derivative. It has been reported to exhibit enol-keto tautomerism. It is a chelating ligand exhibiting potential complexing ability (via N,O-chelation or N,O,O-chelation). Intramolecular proton transfer (IPT) in tautomeric forms of 6HPA has been investigated by density functional theory (DFT) calculations.

Application

6-Hydroxypyridine-2-carboxylic acid may be used in the preparation of ruthenium(II) complex, [RuH(CO)(6-OH-py-2-COO)(PPh3)2].

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCR7000
MKCD9895
MKBR2617V
MKBN4946V
MKBG4645V

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Computational study of the intramolecular proton transfer between 6-hydroxypicolinic acid tautomeric forms and intermolecular hydrogen bonding in their dimers.
Kazemi Riabi SH, et al.
Physical Chemistry Research, 1, 117-125 (2013)
Synthesis, molecular, spectroscopic and catalytic characterization of ruthenium (II) complexes with pyridine-2-carboxylic acid derivatives ligands.
Malecki JG, et al.
Polyhedron, 48(1), 21-30 (2012)
Jennifer A Jacobsen et al.
Journal of medicinal chemistry, 54(2), 591-602 (2010-12-30)
Fragment-based lead design (FBLD) has been used to identify new metal-binding groups for metalloenzyme inhibitors. When screened at 1 mM, a chelator fragment library (CFL-1.1) of 96 compounds produced hit rates ranging from 29% to 43% for five matrix metalloproteases

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