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391778

Sigma-Aldrich

2,2′-Biquinoline-4,4′-dicarboxylic acid dipotassium salt trihydrate

99%

Synonym(s):

2,2′-Bicinchoninic acid dipotassium salt, 4,4′-Dicarboxy-2,2′-biquinoline dipotassium salt, Dipotassium 2,2′-biquinoline-4,4′-dicarboxylate trihydrate

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About This Item

Empirical Formula (Hill Notation):
C20H10K2N2O4 · 3H2O
CAS Number:
Molecular Weight:
474.55
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

99%

form

powder

mp

>300 °C (lit.)

SMILES string

[K+].[K+].[H]O[H].[H]O[H].[H]O[H].[O-]C(=O)c1cc(nc2ccccc12)-c3cc(C([O-])=O)c4ccccc4n3

InChI

1S/C20H12N2O4.2K.3H2O/c23-19(24)13-9-17(21-15-7-3-1-5-11(13)15)18-10-14(20(25)26)12-6-2-4-8-16(12)22-18;;;;;/h1-10H,(H,23,24)(H,25,26);;;3*1H2/q;2*+1;;;/p-2

InChI key

MUCQANVZZZELIW-UHFFFAOYSA-L

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General description

2,2′-Biquinoline-4,4′-dicarboxylic acid dipotassium salt trihydrate is a hydrated dipotassium salt of 2,2-biquinoline-4,4-dicarboxylic acid.

Application

2,2′-Biquinoline-4,4′-dicarboxylic acid dipotassium salt trihydrate (dipotassium salt of 2,2 -biquinoline- 4,4 -dicarboxylic acid trihydrate) may be used as ligand in the aerobic oxidation of alcohols (primary, secondary and benzylic) in the presence of palladium catalysts.

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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Pd (II)-biquinoline catalyzed aerobic oxidation of alcohols in water.
Buffin BP, et al.
J. Mol. Catal. A: Chem., 225(1), 111-116 (2005)
Charged ligands for catalyst immobilisation and analysis.
Chisholm DM and McIndoe JS.
Dalton Transactions, 30, 3933-3945 (2008)

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