Applications
Neutral Red is most commonly used for histological stain for lysosymes but has also been incorporated in investigation of viruses, as a pH indicator, determination of DNA with optical and electrochemical methods, evaluation of synthetic and naturally derived biomaterials. Neutral red can be electrochemically polymerized and used as a redox mediator. The compound once taken up by cells can be used to acertain cell viability with a excitation maximum at 470 nm and emission maximum at 580nm. It is used as a red nuclear counter stain in various cytochemical procedures. It is suitable for microscopy and microbiology and supravital staining of living blood cells. A vital dye used as an indicator and biological stain.

Solubility
Soluble in water (50 mg/ml at 25°C), abs. alcohol (1.8%), and cello solve (3.75%).

Notes
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Recommended storage temperature: 2 - 8°C