Megha International

Aniline Blue is a triphenylmethane dye widely used as a biological stain and pH indicator. It is particularly known for its affinity for cellulose, connective tissues, and certain cytoplasmic components, producing a vivid blue coloration. It is commonly applied in histology, plant biology, and microbiology.

Eosin Yellow is a synthetic dye used as a staining agent and pH indicator in laboratories. It is a fine, yellow powder that imparts color to biological samples, making it suitable for microscopy, histology, and chemical analysis.

Safranine O is a basic dye widely used as a biological stain and analytical indicator. It imparts a red coloration and is primarily used for staining nuclei, cell walls, and cartilage in histology. In microbiology, it serves as a counterstain in Gram staining and other differential staining techniques. The powder form allows preparation of fresh staining solutions for reproducible and consistent results.

Alizarin Complexone is a chelating dye used as a stain and analytical indicator in laboratory applications. It forms colored complexes with metal ions, particularly calcium and magnesium, making it ideal for complexometric titrations. The indicator produces a distinct color change at the endpoint, allowing accurate determination of metal ion concentrations in solutions. The powdered form ensures stability and easy preparation of working solutions.

Bromocresol Green (BCG) is a sulfonphthalein dye widely used as a pH indicator, protein stain, and analytical reagent. It is valued in both chemical laboratories and clinical diagnostics for its versatility in staining and titration applications.

Bromothymol Blue (BTB) is a sulfonphthalein dye widely used as a pH indicator and biological stain. It is valued for its distinct color change in the near-neutral pH range, making it useful in chemistry, biology, medical diagnostics, and environmental testing.

Cresolphthalein is a synthetic phthalein dye used as a pH indicator and in analytical chemistry. It provides sharp color transitions in neutral to alkaline conditions, making it useful in titrations, laboratory experiments, and educational demonstrations.

Dichlorophenolindophenol Sodium Salt (DCPIP) is a redox dye and pH indicator widely used in analytical chemistry and biochemistry. In its oxidized form, it appears deep blue, but upon reduction, it becomes colorless. Because of this property, it is commonly used in vitamin C (ascorbic acid) assays and as an electron acceptor in photosynthesis studies.

Giemsa Stain is a dye mixture commonly used in hematology, cytology, and microbiology. It is especially effective for staining blood smears, bone marrow samples, and parasites (like malaria and other protozoa). The stain provides excellent differentiation between nuclei and cytoplasm, giving a purple-blue coloration to nuclei and pink to cytoplasm, making it ideal for cell morphology studies and differential blood counts. The powder form allows preparation of fresh staining solutions for reliable and reproducible results.