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4,4'-DIFLUOROBENZOPHENONE CAS345-92-6Can make optical recording and electric imaging agent and charge control agent of record material, also can make some polymerization initiator, is many copolymer monomer material
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4,4'-Diaminodiphenylsulfone CAS80-08-0Used as a medicine, macromolecule material intermediates
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Dexamethasone 21-phosphate disodium salt CAS2392-39-4Adrenocorticotropic hormone drugs, anti-inflammatory, anti-drug, anti-allergy.
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DIHYDRO-BETA-IONONE CAS17283-81-7Mainly used for preparation of sweet osmanthus type essence, etc
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Methyl sulfone CAS67-71-0Common organic synthetic raw material, high temperature and solvent and analytical reagent.