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Gold Suppliers > Chemay (Tianjin) Int'l Trading Co.,Ltd.
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Featured Products
  • inquireDirect Blue 71
    CAS NO : 4399-55-7;   MF : C40H23N7Na4O13S4

    ;C.I. Direct Blue 71;C.I. 34140;Direct Blue 71;direct blue 71 (C.I. 34140);tetrasodium 3-[(E)-{4-[(E)-{4-[2-(6-amino-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene)hydrazino]-6-sulfon... >>>

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