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                                          4,4'-dihydroxy-7

                                          4,4'-dihydroxy-7
                                          CAS NO  134-47-4
                                          Molecular formula C21H16N2O9S2
                                          Molecular weight 504.4897
                                          Structural formula
                                          Properties light yellow crystal; insoluble in organic solvent, lightly soluble in water
                                          To use as intermediate of azo dyes; for manufacturing of direct fast S, direct acid proof red 4BS
                                          Content ≥ 90.0%
                                          Purity (HPLC)  ≥ 98.0%
                                          Moisture ≤ 2.0%
                                          Packaging 25kgs/woven bag

                                          Add: Tianhu Town, Song County, Luoyang City, Henan Province
                                          Tel: +86-379-66578111 Fax: +86-379-66578287
                                          Sales Department: Manager Su 13721671000
                                          E-mail: luoyanghuasu1@163.com
                                          Copyright(C)2017 , Luoyang Huasu Dyestuff Co., Ltd All Rights Reserved.  Supported by  ChemNet  ChinaChemNet
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