1.04595

Calconcarboxylic acid

metal indicator

• Synonym(s): Calconcarboxylic acid, Patton and Reeders Reagent, 2-Hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-naphthalene-3-carboxylic acid
• Empirical Formula (Hill Notation): C₂₁H₁₄N₂O₇S · 2H₂O
• CAS Number: 3737-95-9
• Molecular Weight: 474.44
• UNSPSC Code: 12352106
• EC Index Number: 223-117-0
• NACRES: NB.21
• MDL number: MFCD00004078

Properties

• Product Name: Calconcarboxylic acid, metal indicator
• Quality Segment: 200
• form: solid
• technique(s): titration: suitable
• mp: 300 °C
• bulk density: 400 kg/m³
• storage temp.: 2-30°C
• SMILES string: [S](=O)(=O)(O)c1c2c(c(c(c1)O)N=Nc3c4c(cc(c3O)C(=O)O)cccc4)cccc2
• InChI: 1S/C21H14N2O7S/c24-16-10-17(31(28,29)30)13-7-3-4-8-14(13)18(16)22-23-19-12-6-2-1-5-11(12)9-15(20(19)25)21(26)27/h1-10,24-25H,(H,26,27)(H,28,29,30)
• InChI key: MVQBFZXBLLMXGS-UHFFFAOYSA-N

Description

Application

• Solid-state polymer membranes for simple, sensitive, and low-cost monitoring of mercury in water.: This study utilizes calconcarboxylic acid in solid-state polymer membranes to monitor mercury in water. The method offers a simple, sensitive, and cost-effective approach for environmental monitoring, highlighting the potential for widespread application in water quality assessment (Kallithrakas-Kontos et al., 2019).


• A new fluorescent quenching method for the determination of phosphoproteins by using calconcarboxylic acid.: This research introduces a fluorescent quenching method using calconcarboxylic acid for the determination of phosphoproteins. The technique is significant for proteomics and biochemical research, providing a new tool for protein analysis (Zhu et al., 2015).


• Formation of new non-oxido vanadium(IV) species in aqueous solution and in the solid state by tridentate (O, N, O) ligands and rationalization of their EPR behavior.: Calconcarboxylic acid is used as a ligand to form non-oxido vanadium(IV) species. This study enhances the understanding of vanadium chemistry and its potential applications in catalysis and materials science (Sanna et al., 2013).


• Electrophoretic nanotechnology of composite electrodes for electrochemical supercapacitors.: This paper explores the use of calconcarboxylic acid in the fabrication of composite electrodes for supercapacitors. The findings are crucial for the development of high-performance energy storage devices (Su and Zhitomirsky, 2013).

Analysis Note

Appearance of solution: passes test
Water (according to Karl Fischer): ≤ 9
Suitability as indicator (for metal titration): passes test

Safety Information

• pictograms: GHS07
• signalword: Warning
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• hcodes: H315,H319,H335