3d image of patent blue v skeletal formula

patent blue food sulphan blue acid l-blau c-blau 20 patentblau sky e131 synthetic triphenylmethane dye pigment paint colorant synthetic dyestuffs indicator stain coloring food additive adjuvants ingredient agent ins number jelly sweets curacao gelatin desserts lymphangiography sentinel node biopsy lymph vessels dental plaque dental ph-dependent redox indicator analytical color molecule molecular formula skeletal structural structure geometry 3d