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Tetramethylguanidine CAS80-70-6Synthesis of pharmaceutical and chemical raw materials, used in medicine is mainly used in the production of cephalosporin antibiotics.
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2,4,6-Trifluorobenzoic acid CAS28314-80-9Pharmaceuticals, pesticides, liquid crystal intermediates.
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3-(Trimethylsilyl)propargyl bromide CAS38002-45-8Used to prepare the end of the conjugated enyne and malonyl enolate.
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Tellurium CAS13494-80-9May increase the ductility of steel; cast iron casting surface can trace tellurium hard, wear-resistant