Direct Black 38 Direct Black EX for Cotton Leather Silk Wood excellent for Ink Application

Direct Black 38 / Direct Black EX C.I. 30235 CAS NO.: 1937-37-7 Molecular formula: C34H25N9Na2O7S2 Packed in 25kgs Iron Drum Used for dyeing cotton, silk, ink wood etc,as one material for black ink.

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