Megha International

Crocein Orange G (also known as Acid Orange 7) is a synthetic azo dye widely used as a biological stain and indicator dye in histology, cytology, and microbiology. It is especially known as a component of histological staining mixtures such as Papanicolaou stain and Orange G variants used in differential tissue staining.

Dibromofluorescein is a halogenated derivative of fluorescein belonging to the xanthene dye family. It is widely used as a pH indicator, biological stain, and fluorescent dye. The presence of bromine atoms in its structure shifts its spectral properties compared to fluorescein, giving it unique staining and indicator characteristics.