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1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) , its cas register number is 140681-55-6. It also can be called N-Chloromethyl-N'-fluorotriethylenediammonium bis(tetrafluoroborate); Selectfluor fluorinating reagent ; 1,4-Diazoniabicyclo(2.2.2)octane, 1-(chloromethyl)-4-fluoro-, tetrafluoroborate(1-) (1:2) ; and 1,4-Diazoniabicyclo(2.2.2)octane, 1-(chloromethyl)-4-fluoro-, bis(tetrafluoroborate(1-)) . Its classification code is TSCA Flag P [A commenced PMN (Premanufacture Notice) substance]. 1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) (CAS NO.140681-55-6) is Thermally unstable, Moisture sensitive and Heat sensitive. It should avoid the condition like incompatible materials, ignition sources, exposure to moist air or water, flammable materials, temperatures above 30°C. It is not compatible with strong oxidizing agents, reducing agents, strong acids, bases. And also prevent it to broken down into hazardous decomposition products: hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide, hydrogen fluoride gas, boron trifluoride. However, its hazardous polymerization will not occur.
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