3d image of amido black 10b skeletal formula

amido black 10b amidoschwarz acid acidal navy blue 3br naphthalene buffalo nbr amino acid staining azo dye pigment paint colorant synthetic dye indicator stain azo diazo protein criminal investigation blood fingerprints blue black methanol van gieson collagen reticulin molecule molecular formula skeletal structural structure geometry ball stick naphthol substance compound component agent reagent precursor synthesis reaction production building block 3d