3d image of bromothymol blue skeletal formula

bromothymol blue sulfone phthalein btb indicator pigment paint colorant synthetic dye stain azo diazo chlorophenol red thymol bromocresol green glacial acetic acid synthesis preparation photosynthetic phenol cell walls obstetrics amniotic fluid ph bacterial vaginosis blood semen substance matter material compound component agent stuff reagent functional group precursor reaction production molecule molecular formula skeletal structural structure 3d