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BISMUTH(III) IODIDE CAS7787-64-6Used as an analytical reagent, also used to test the alkaloids or other alkali.
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N,O-BIS(TRIMETHYLSILYL)TRIFLUOROACETAMIDE CAS25561-30-2Pharmaceutical intermediates, neutral silicane protective agent, mainly used in the synthesis of cephalosporin antibiotics
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Diethylaminosulfur trifluoride CAS38078-09-0For fluoride reagents, anti-cancer drugs on fluoride