China Suppliers > Tianjin Yuansu Chemical Reagent Co., LTD > 6-Bromo-2,4-Dinitroaniline
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- Details for 6-Bromo-2,4-Dinitroaniline
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6-Bromo-2,4-Dinitroaniline 1817-73-8
Category : Dyestuffs and Pigments
CAS NO : 1817-73-8 EC NO : 217-329-2 MF : C6H4BrN3O4 MW : 262.0177 Specification : 99% min Packing : 25kg 50kg drum or bag Product description : What is the chemical of 6-Bromo-2,4-Dinitroaniline ? Appearance: Yellow to yellow brown powder ; Assay: 99% min by HPLC ; IR Identity: conform to standard ; HNMR： conform to standard ; carbon spectrum: conform to standard ; Water by K. F.:0.5% max or as per the customer’s request ; Loss on drying:0.5% max. or as per the customer’s request ; =============================================================================== Its main use is as an intermediate for dispersing dyes, used to prepare dyes such as dispersed navy blue 2GL and dispersed deep blue HGL. In addition, it can also be used as a model chemical substance for laboratory evaluation of bioluminescent Salmonella reverse mutation assay to detect mutagenicity ============================================================================= synthetic route According to the latest information from the authoritative chemical platform ChemicalBook and Gaide Chemical Network, the industrial synthesis method of this compound is as follows: Raw materials: 2,4-dinitrophenylamine, bromine (Br ₂), hydrochloric acid (HCl), chlorobenzene (solvent), sodium hypochlorite (NaClO), sodium sulfite (Na ₂ SO3). Reaction conditions: Conduct electrophilic bromination reaction in aqueous phase, control temperature and feeding sequence to improve selectivity and yield. Specific steps Add: Water 1800 L 2,4-dinitrophenylamine 300 kg Hydrochloric acid 100 kg Chlorobenzene 3 kg Stir for 1 hour to fully dissolve and disperse the material. Slowly add 180 kg of bromine at room temperature. Heat up to 50-55 ℃ and keep the reaction at room temperature for 6 hours. After the reaction is complete, sodium hypochlorite solution (equivalent to 33.5 kg of effective chlorine) is added and incubated for 3 hours to oxidize residual by-products. Add sodium sulfite aqueous solution (equivalent to 100% amount of 25-30 kg) to remove unreacted bromine. Filter, wash with water until neutral, and dry to obtain the finished product. Uses : as an intermediate for dyes Synonyms : 2,4-Dinitro-6-Bromoaniline;6-BROMO-2,4-DINITRO ANILINE; Molecular Structure : 
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6-Bromo-2,4-Dinitroaniline