direct black

Products

Nigrum recta XXXVIII / ex recta Nigrum

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.

inquiry detail