135984-01-9

Basic information

• Product Name: 1,5-DIPHENYL-3-(2-THIENYL)FORMAZAN
• Synonyms: 1,5-DIPHENYL-3-(2-THIENYL)FORMAZAN;STC FORMAZAN;1,5-Diphenyl-3-(thiophen-2-yl)forMazan
• CAS NO: 135984-01-9
• Molecular Formula: C17H14N4S
• Molecular Weight: 306.38
• Product Categories: Formazans;Tetrazolium Salts & Formazans
• Mol File: 135984-01-9.mol
• Article Data: 3

Chemical Properties

• Melting Point: 144 °C
• Boiling Point: 449.8±37.0 °C(Predicted)
• Appearance: /
• Density: 1.20±0.1 g/cm3(Predicted)
• Refractive Index: 1.655
• PKA: 12.29±0.10(Predicted)
• CAS DataBase Reference: 1,5-DIPHENYL-3-(2-THIENYL)FORMAZAN(CAS DataBase Reference)
• NIST Chemistry Reference: 1,5-DIPHENYL-3-(2-THIENYL)FORMAZAN(135984-01-9)
• EPA Substance Registry System: 1,5-DIPHENYL-3-(2-THIENYL)FORMAZAN(135984-01-9)

Safety Data

• Hazardous Substances Data: 135984-01-9(Hazardous Substances Data)

Usage

General Description

1,5-Diphenyl-3-(2-thienyl)formazan is a chemical compound with the molecular formula C20H14N4S. It is a formazan dye that is commonly used in analytical chemistry as a reagent for the determination of various metals, including nickel and cobalt. It forms a red to purple colored complex with these metals, making it useful for colorimetric analysis. The compound is also known for its ability to act as a photoinitiator in the polymerization of acrylate monomers. Additionally, it has potential applications in the field of organic electronics due to its electronic and optical properties. The chemical structure of 1,5-Diphenyl-3-(2-thienyl)formazan consists of two phenyl rings and a thienyl group attached to a central formazan core, which gives it its unique properties and potential uses.

InChI:InChI=1/C17H14N4S/c1-3-8-14(9-4-1)18-20-17(16-12-7-13-22-16)21-19-15-10-5-2-6-11-15/h1-13,18H/b20-17-,21-19+

Upstream product

• 39677-96-8 (E)-1-phenyl-2-(thiophen-2-ylmethylene)hydrazine 
• 100-34-5 benzene diazonium chloride 
• 98-03-3 thiophene-2-carbaldehyde 
• 100-63-0 phenylhydrazine 
• 39677-96-8 1-(thiophen-2-ylmethylene)-2-phenylhydrazine 
• 62-53-3 aniline 

Relevant articles and documents

BF3-functionalized silica-coated magnetic nanoparticles as a novel heterogeneous solid acid for synthesis of formazan derivatives via a green protocol

A new type of green heterogeneous solid acid was prepared by the immobilization of BF3·Et2O on the surface of Fe3O4@SiO2 core-shell nanocomposite (Fe3O4@SiO2-BF3) and characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), field emission scanning electron microscope (FE-SEM), energy-dispersive X-ray (EDS), and transmission electron microscope (TEM). The activity of this super solid acid was probed through the synthesis of aryl diazonium salts as the starting reactant and then, their diazo coupling with aldehyde phenylhydrazones for formation of formazan derivatives in a solvent-free medium at room temperature. This clean and environmentally benign methodology has advantages such as: no need for corrosive and toxic liquid acids, solvents, or buffer solutions, room temperature reaction, high yields, and short reaction times. In addition, long-term stability of aryl diazonium salts supported on the surface of Fe3O4@SiO2-BF3 magnetic nanoparticles (MNPs) at room temperature was one of the most important results of this procedure.

New C-arylation reaction found during a study on the interaction of aldohydrazones and arenediazonium chlorides

The interaction of 2-pyridinecarboxaldehyde phenylhydrazone 1a with aryldiazonium chlorides furnished in complex mixtures, from which (E)-phenylhydrazones of 2-pyridylarylketones 3a-c were isolated as the main products.