49764-63-8

Basic information

• Product Name: 4,5-DibroMo-1,2-phenylenediaMine
• Synonyms: 4,5-DibroMo-1,2-phenylenediaMine;4,5-dibroMobenzene-1,2-diaMine;1,2-Diamino-4,5-dibromobenzene;1,2-BenzenediaMine, 4,5-dibroMo-;4,5-Dibromo-1,2-benzenediamine;4,5-Dibromo-o-phenylenediamine;4,5-Dibromo-1,2-benzenediamine 4,5-Dibromo-1,2-phenylenediamine
• CAS NO: 49764-63-8
• Molecular Formula: C₆H₆Br₂N₂
• Molecular Weight: 265.93324
• EINECS: -0
• Mol File: 49764-63-8.mol
• Article Data: 22

Chemical Properties

• Melting Point: 155℃
• Boiling Point: 326.7±37.0 °C(Predicted)
• Appearance: /
• Density: 2.104±0.06 g/cm3(Predicted)
• Storage Temp.: Keep in dark place,Inert atmosphere,Room temperature
• Solubility: soluble in Methanol
• PKA: 2.68±0.10(Predicted)
• CAS DataBase Reference: 4,5-DibroMo-1,2-phenylenediaMine(CAS DataBase Reference)
• NIST Chemistry Reference: 4,5-DibroMo-1,2-phenylenediaMine(49764-63-8)
• EPA Substance Registry System: 4,5-DibroMo-1,2-phenylenediaMine(49764-63-8)

Safety Data

• Hazardous Substances Data: 49764-63-8(Hazardous Substances Data)

Usage

General Description

4,5-Dibromo-1,2-phenylenediamine is a chemical compound with the molecular formula C6H6Br2N2. It is a white to off-white solid that is primarily used as an intermediate in the production of dyes and pigments. 4,5-DibroMo-1,2-phenylenediaMine is also used in hair dyes and in the production of pharmaceuticals. It is known for its strong oxidizing and skin sensitizing properties, and therefore, proper handling and safety precautions are necessary when working with this chemical. Additionally, it is classified as a hazardous substance and should be stored and used in accordance with safety regulations and guidelines.

Upstream product

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• 49633-28-5 1,2-bis-(p-methylphenylsulfonamido)-benzene 
• 95-54-5 1,2-diamino-benzene 
• 583-53-9 2,3-dibromobenzene 
• 615-55-4 3,4-dibromoaniline 
• 179061-90-6 3,4-dibromo-(trifluoroacetamido)benzene 
• 18392-81-9 5,6‐dibromo‐2,1,3‐benzothiadiazole 

Downstream Products

• 74545-26-9 5,6-dibromo-1H-benzo[d]imidazole 
• 18392-81-9 5,6‐dibromo‐2,1,3‐benzothiadiazole 
• 343942-84-7 1,2-dibromo-4,5-bis(dimethylamino)benzene 
• 319916-62-6 5,6-dibromo-2-(3,4-dinitrophenyl)benzimidazole 
• 129365-93-1 4,5-diaminophthalonitrile 
• 716320-92-2 5,6-dibromo-1H-benzo[d][1,2,3]triazole 
• 419569-06-5 6,7-dicyano-2,3-bis[3,5-di-tert-butylphenylethynyl]quinoxaline 
• 419569-07-6 6,7-dicyano-2,3-bis[4-(triisopropylsilyloxy)phenylethynyl]quinoxaline 
• 550373-12-1 6,7-dicyano-2,3-bis(4-{2-[2-(methoxyethoxy)ethoxy]ethoxy}-2,6-dimethylphenylethynyl)quinoxaline 
• 319916-63-7 5,6-dibromo-2-(3,4-diaminophenyl)benzimidazole 
• 79319-39-4 4,5-bis-(dimethylamino)phthalonitrile 
• 1145919-75-0 C₃₄H₄₀N₂S₄ 
• 1145919-78-3 N4,N4,N4”,N4”-tetraphenyl-[1,1’:2’,1”-terphenyl]-4,4’,4”,5’-tetraamine 
• 1196131-61-9 5,6-dibromo-2-(4-fluorophenyl)-1H-benzimidazole 

Relevant articles and documents

Preparation method of 5,6-bis(4-aminobenzyl)-1-methyl-2-phenyl benzimidazole

The invention relates to a preparation method of 5,6-bis(4-aminobenzyl)-1-methyl-2-phenyl benzimidazole, belongs to the technical field of chemical synthesis, and aims to provide a method for preparing 5,6-bis(4-aminobenzyl)-1-methyl-2-phenyl benzimidazole by respectively performing methyl substitution and phenyl substitution at the 1-position and the 2-position of benzimidazole. The target product is prepared through four steps of dehydration condensation, nucleophilic addition, Suzuki coupling and palladium-carbon reduction. The preparation method disclosed by the invention is simple and high in yield.

Synthesis, mesomorphic properties and nonlinear optical studies of alkyl and alkoxy phenylacetylene containing phenazine fused extended triphenylene discotic liquid crystalline dyes

Herein, we have reported the alkyl and alkoxy phenylacetylene containing phenazine fused triphenylene discotic liquid crystals (DLCs) which are obtained by the condensation reaction of triphenylene-1,2-diquinone with 1,2-diamino-4,5-dibromobenzene, followed by Sonogashira C–C coupling reaction with 4-alkyl-phenylacetylene or 4-alkoxy-phenylacetylene. Six novel derivatives were synthesized and evaluated for their thermal and optical properties. They show a broad range of hexagonal columnar phase and retain their mesophase up to room temperature upon cooling from the isotropic liquid. Thermotropic liquid crystalline properties of all the compounds were studied by polarised optical microscopy (POM), differential scanning calorimetry (DSC). The self-assembly of mesophase structure was investigated by X-ray diffraction (XRD) studies. Thermogravimetric analysis of all the mesogens shows good thermal stability over a broad temperature range. The photophysical properties of newly synthesized compounds were measured using UV–Vis absorption and photoluminescence emission spectroscopy in anhydrous chloroform solvent. The π-extended conjugation in these mesogens exhibit strong absorption bands falling around 270–487 nm and corresponding emission band at 657–663 nm respectively. The high delocalization of π– electrons in extended discotic mesogens show high nonlinear optical properties when measured under excitation by nanosecond laser pulses at 532 nm. These materials may find distinctive applications in the semiconducting devices.

Multinuclear Phthalocyanine-Fused Molecular Nanoarrays: Synthesis, Spectroscopy, and Semiconducting Property

The post-cyclization strategy rather than the conventional ante-cyclotetramerization method was employed for the synthesis of multinuclear phthalocyanine-fused molecular nanoarrays. Reaction of 2,3,9,10,16,17-hexakis(2,6-dimethylphenoxy)-23,24-diaminophth