6829-22-7

Basic information

• Product Name: Solvent Red 179
• Synonyms: Macrolex Red E2G;Oplas Red 338;Polysolve Red 179;Snmiplast Red H4GR.;14H-Benzo[4,5]isoquinolino[2,1-a]perimidin-14-one;SOLVENT RED 179;C.I. 564150;14h-perimidino[2,1-a]benz[de]isoquinolin-14-one
• CAS NO: 6829-22-7
• Molecular Formula: C₂₂H₁₂N₂O
• Molecular Weight: 320.35
• EINECS: 229-904-5
• Mol File: 6829-22-7.mol
• Article Data: 6

Chemical Properties

• Melting Point: 253 °C
• Boiling Point: 611.6 °C at 760 mmHg
• Flash Point: 323.7 °C
• Appearance: Powder
• Density: 1.4 g/cm³
• Vapor Pressure: 6.73E-15mmHg at 25°C
• Refractive Index: 1.787
• PKA: -2.59±0.20(Predicted)
• Water Solubility: 11μg/L at 20℃
• CAS DataBase Reference: Solvent Red 179(CAS DataBase Reference)
• NIST Chemistry Reference: Solvent Red 179(6829-22-7)
• EPA Substance Registry System: Solvent Red 179(6829-22-7)

Safety Data

• Hazardous Substances Data: 6829-22-7(Hazardous Substances Data)

Usage

Flammability and Explosibility

Nonflammable

InChI:InChI=1/C22H12N2O/c25-22-16-10-2-6-13-5-1-9-15(19(13)16)21-23-17-11-3-7-14-8-4-12-18(20(14)17)24(21)22/h1-12H

Upstream product

• 81-84-5 1,8-Naphthalic anhydride 
• 479-27-6 naphthalene-1,8-diamine 
• 81-30-1 1,4,5,8-naphthalenetetracarboxylic dianhydride 
• 108-95-2 phenol 
• 518-05-8 Naphthalene-1,8-dicarboxylic acid 

Relevant articles and documents

Highly selective colorimetric fluorescence sensor for Cu2+: Cation-induced 'switching on' of fluorescence due to excited state internal charge transfer in the red/near-infrared region of emission spectra

A 1,8-naphthalimide-based colorimetric fluorescence perinone dye, receptor 1 is reported herein for the selective detection of Cu2+ over the other heavy and transition metal ions. Receptor 1 shows a strong colorimetric change from orange to purple and a dramatic enhancement of fluorescence intensity due to cation-induced excited state internal charge transfer during the sensing event, that is, a dual optical response that would facilitate naked-eye detection of Cu2+.

Method for synthesizing solvent red 179 with low pollution

The invention provides a method for synthesizing solvent red 179 with low pollution. The preparation method comprises the following steps: heating to 40-60 DEG C, sequentially adding 1, 8-diaminonaphthalene, 1, 8-naphthalene anhydride and an SA catalyst into NMP, uniformly stirring, continuously heating to 110-125 DEG C, and reacting for 5-10 hours; cooling to 60-75 DEG C, stirring for 1-3 hours,cooling to 20-35 DEG C, and carrying out suction filtration to obtain a filter cake and filtrate; washing and soaking the filter cake with hot water, collecting washing and soaking liquid and filtrate, and distilling and recycling; and washing the filter cake with hot water until the filter cake is neutral, and drying to obtain the solvent red 179 dye. The deltaE the solvent red 179 dye prepared by the preparation method disclosed by the invention is less than 1.0, the deltaC is greater than 0.5, the pressure value is less than 0.3, and the product quality can meet the application requirementsof high-end customers.

Green synthesis of polycyclic benzimidazole derivatives and organic semiconductors

Polycyclic benzimidazole derivatives, an important class of compounds in organic electronics and photovoltaics, were prepared using a solvent-free "green" process based on heating carboxylic acid anhydrides and arylene diamines in the presence of zinc acetate in the solid state. Products were isolated and purified directly by train sublimation of the crude reaction mixtures. The reaction conditions were optimized using various carboxylic acid anhydrides. Optical and electrochemical properties of these materials are also described.