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          2. Dafeng Tiansheng Pharmaceutical Co., Ltd.(Dafeng Huashu Pharmaceutical Co., Ltd.)
            Bulk drug
            Intermediate
            ODA
            UV adsorbent
            Photoinitiator
            Antioxidant
            Light stabiliser
            Doxycycline sulfosalicylate
            Product name: Doxycycline sulfosalicylate
            Pictures:
            Molecular formula: C22H24O8N2·C7H6O6S
            Molecular weight: 662.44
            Structural formula:
            Properties: yellow crystal powder; soluble in water and insoluble in alcohols
            Uses: tetracyclines intermediate
            Packaging: bag/drum
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