33224-18-9

Basic information

• Product Name: 3,5-DICYANONITROBENZENE
• Synonyms: 3,5-DICYANONITROBENZENE;5-nitroisophthalonitrile
• CAS NO: 33224-18-9
• Molecular Formula: C₈H₃N₃O₂
• Molecular Weight: 173.12832
• Mol File: 33224-18-9.mol
• Article Data: 9

Chemical Properties

• Boiling Point: 279.6 °C at 760 mmHg
• Flash Point: 122.9 °C
• Appearance: /
• Density: 1.41 g/cm³
• Vapor Pressure: 0.00399mmHg at 25°C
• Refractive Index: 1.602
• CAS DataBase Reference: 3,5-DICYANONITROBENZENE(CAS DataBase Reference)
• NIST Chemistry Reference: 3,5-DICYANONITROBENZENE(33224-18-9)
• EPA Substance Registry System: 3,5-DICYANONITROBENZENE(33224-18-9)

Safety Data

• Hazardous Substances Data: 33224-18-9(Hazardous Substances Data)

Usage

General Description

3,5-Dicyanonitrobenzene is a chemical compound with the molecular formula C8H3N3O4. It is a yellow crystalline solid that is used in the manufacturing of dyes, pigments, and pharmaceuticals. 3,5-Dicyanonitrobenzene is a versatile compound that can undergo various chemical reactions, including nucleophilic substitution and reduction, to produce a wide range of derivatives with different properties and applications. It is important to handle this chemical with care, as it is toxic and can cause skin irritation and respiratory issues upon exposure.

InChI:InChI=1/C8H3N3O2/c9-4-6-1-7(5-10)3-8(2-6)11(12)13/h1-3H

Upstream product

• 13438-30-7 5-nitro-1,3-benzenedicarbonylchloride 
• 99066-80-5 methyl 3-cyano-5-nitrobenzoate 
• 23218-93-1 3-amino-5-nitro-benzoic acid methyl ester 
• 618-88-2 5-nitrobenzene-1,3-dicarboxylic acid 
• 626-17-5 benzene-1,3-dicarbonitrile 
• 38177-07-0 5-nitro-1,3-benzenedicarboxamide 
• 50826-03-4 3-cyano-5-nitro-benzoic acid amide 

Downstream Products

• 108761-80-4 2,6-dicyano-p-phenylenediamine 
• 41642-51-7 D₇ 
• 79370-78-8 5-hydroxyisophthalonitrile 
• 886844-74-2 3,5-bis(1H-tetrazol-5-yl)aniline 

Relevant articles and documents

Corresponding amine nitrile and method of manufacturing thereof

The invention relates to a preparation method of nitrile. Compared with the prior art, the preparation method has the characteristics of obvious reduction of the usage amount of ammonia sources, low environmental pressure, low energy consumption, low production cost, high purity and yields of nitrile products, and the like, and can be used for obtaining nitrile with a more complex structure. The invention also relates to a method for preparing corresponding amine with nitrile.

Corresponding amine nitrile and method of manufacturing thereof (by machine translation)

The invention relates to a method of manufacturing one kind of nitrile, compared with the prior art, has significantly reduced the amount of ammonia, the environmental pressure of the small, low energy consumption, low production cost, nitrile product purity and yield and the like, and can obtain more complex structure of the nitriles. The invention also relates to the corresponding amine by the nitrile manufacture method. (by machine translation)

Synthesis and photophysical properties of 2,6-dicyano-p-phenylenediamine

The photophysical and electrochemical properties of p-phenylenediamine (PPD) are strongly affected by the addition of cyano groups to the aromatic ring. In 2,3,5,6-tetracyano-p-phenylenediamine (TCPPD) the photophysics is governed mostly by the solvent basicity (β) whereas in 2,6-dicyano-N,N, N′,N′-tetramethyl-p-phenylenediamine (DCTMPPD) by the solvent polarity/polarizability (π*). In order to study the interactions of cyano-substituted PPDs with the solvent molecules in more detail as well as to clarify the role and origin of hydrogen bonding differences for TCPPD and DCTMPPD, another cyano substituted PPD, 2,6-dicyano-p-phenylenediamine (DCPPD) has been synthesized. The photophysical properties have been measured in a wide range of solvents. The fluorescence lifetimes (from 14 ns to 20 ns) and quantum yields (from 0.7 to 0.85) are not very sensitive to the environment. The solvatochromism is analyzed by a linear solvation energy relationship (LSER) using parameters developed by Kamlet, Taft and co-workers. It has been found that both absorption and emission of DCPPD depend on specific as well as non-specific interactions of the solute with the solvent molecules. The ground and excited state pKa values for DCPPD have also been determined.