4640-42-0

Basic information

• Product Name: 2,3-dicyano-5,6-dichloro-1,4-dimethoxybenzene
• Synonyms: 2,3-dicyano-5,6-dichloro-1,4-dimethoxybenzene
• CAS NO: 4640-42-0
• Molecular Weight: 257.076
• Mol File: 4640-42-0.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 2,3-dicyano-5,6-dichloro-1,4-dimethoxybenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3-dicyano-5,6-dichloro-1,4-dimethoxybenzene(4640-42-0)
• EPA Substance Registry System: 2,3-dicyano-5,6-dichloro-1,4-dimethoxybenzene(4640-42-0)

Safety Data

• Hazardous Substances Data: 4640-42-0(Hazardous Substances Data)

Upstream product

• 186581-53-3 diazomethane 
• 84-58-2 2,3-dicyano-5,6-dichloro-p-benzoquinone 
• 4640-41-9 2,3-dichloro-5,6-dicyanohydroquinone 
• 74-88-4 methyl iodide 

Relevant articles and documents

Synthesis and antimalarial activity of quinones and structurally-related oxirane derivatives

A series of eighteen quinones and structurally-related oxiranes were synthesized and evaluated for in vitro inhibitory activity against the chloroquine-sensitive 3D7 clone of the human malaria parasite Plasmodium falciparum. 2-amino and 2-allyloxynaphthoquinones exhibited important antiplasmodial activity (median inhibitory concentrations (IC50) 10 μM). Oxiranes 6 and 25, prepared respectively by reaction of α-lapachone and tetrachloro-p-quinone with diazomethane in a mixture of ether and ethanol, exhibited the highest antiplasmodial activity and low cytotoxicity against human fibroblasts (MCR-5 cell line). The active compounds could represent a good prototype for an antimalarial lead molecule.

Low hue photodisinfectants

Low hue photo disinfecting compositions comprising organosilicon(IV) phthalocyanine and naphthalocyanines having Q-band absorption maxima at wavelengths greater than 660 nm and increased triplet state yields whereby production of singlet oxygen is increas

Octa-alkoxy Phthalocyanine and Naphthalocyanine Derivatives: Dyes with Q-band Absorption in the Far Red or Near Infrared

The lithium alkoxide-catalysed cyclic tetramerisation of various 3,6-dialkoxy-4,5-dichlorophthalonitriles, 1,4-dialkoxynaphthalene-2,3-dicarbonitriles and 3,6-dialkoxyphthalonitriles to give the corresponding metal-free octa-alkoxyoctachlorophthalocyanines, octa-alkoxynaphthalocyanines and octa-alkoxyphthalocyanines is described.An unexpected trans-alkoxylation reaction occurs during the cyclisation of the first two series of precursors.Metal-free phthalocyanines and naphthalocyanines have been converted into derivatives containing various metal ions.Compounds show Q-band absorption in the region 739-862 nm in toluene solution.The fluorescence spectra of selected examples are reported.The solubility of some of the compounds has been measured in a formulation of liquid crystal materials.