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1,3-Dimethyl-2-imidazolidinone CAS80-73-9Used as pharmaceutical intermediates, important organic solvents
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1,4-DIIODOBENZENE CAS624-38-4Mainly used as pharmaceutical intermediates in biological pharmaceutical
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2-(DICYCLOHEXYLPHOSPHINO)BIPHENYL CAS247940-06-3As ligands for coupling reaction, oxidation, replace, cycloaddition
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2,6-DICHLOROPYRIDINE CAS2402-78-0Pharmaceuticals and intermediates in organic synthesis