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55088

Sigma-Aldrich

8-Hydroxy-2-quinolinecarboxylic acid

≥98.0% (HPLC)

Synonym(s):

8-Hydroxyquinaldic acid

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About This Item

Empirical Formula (Hill Notation):
C10H7NO3
CAS Number:
Molecular Weight:
189.17
Beilstein:
146082
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

≥98.0% (HPLC)

form

solid

SMILES string

OC(=O)c1ccc2cccc(O)c2n1

InChI

1S/C10H7NO3/c12-8-3-1-2-6-4-5-7(10(13)14)11-9(6)8/h1-5,12H,(H,13,14)

InChI key

UHBIKXOBLZWFKM-UHFFFAOYSA-N

General description

8-Hydroxy-2-quinolinecarboxylic acid (8HQC) is a tridentate chelating agent. It reacts with 2-aminophenol to form a benzoxazole derivative, which can undergo fluorescence quenching in water, making it a viable candidate for developing a probe for detecting water in aprotic organic solvents. The analysis of mid-IR and Raman spectra of 8HQC shows the presence of seven tautomers.

Application

8-Hydroxy-2-quinolinecarboxylic acid may be used in the preparation of bis (8-hydroxyquinoline-2-carboxylato-Κ3N,O,O′) cobalt (II) trihydrate.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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