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1-ETHYL-3-METHYLIMIDAZOLIUM TETRAFLUOROBORATE CAS143314-16-3Chemical intermediates, fine chemicals, pharmaceutical intermediates, materials
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ERIOCHROME BLUE BLACK B CAS3564-14-5Do the indicator of complexometric titration. When used with alcohol or aqueous solution, for the determination of calcium, magnesium, manganese, zinc and other metal ions, determination of the water hardness.
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Ethyl acetoacetate CAS141-97-9Used in organic synthesis, spices, dye and pharmaceutical industry
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2,2'-(ETHANEDIYLIDENEDINITRILO)DIPHENOL CAS1149-16-2Used as the complexing indicator, etc