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Black Crystal Nigrosine Acid Black 2 na-egbu maramara
Na-ewebata ngwaahịa anyị dị elu na nke a pụrụ ịdabere na ya nke ahaziri maka ihe nsure ọkụ na-esi ísì ụtọ na anwụnta, anyị ji mpako na-eweta Nigrosine MS Conc ntụ ntụ, Acid Nigrosine MS Conc, Acid Black 2, Nigrosine black Shiny Crystal, nigrosine acid black, Aniline Black acid black dye . Acid Black 2 nwere ọtụtụ aha, nke a kpọtụrụ aha n'elu.
