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連絡先担当者 Mr. Ken
1199# North Qinzhou Rd, Shanghai, Shanghai
ppearance :greyish white crystal powder, wet cake assay :≥*0% purity(HPLC) :≥*6% m-phenylenediamine:≤0.5% m-phenylenediurea :≤3% water :****5% insolubles :≤0.1%