Light green SF

Light Green SF is a synthetic, triarylmethane dye used in various industries, including the medical field. It is also known as Food green 3, Acid green 50, and Lissamine green B.

Chemical Properties

Light Green SF is a water-soluble dye with the chemical formula C37H34N2O10S3Na2. It has a molecular weight of 792.85 g/mol. The dye is characterized by its light green color, which is where it gets its name. It is stable under normal conditions but may decompose when exposed to light or heat.

Uses

In the medical field, Light Green SF is used as a staining agent in histology and cytology. It is often used in combination with other dyes in a multi-stain procedure to differentiate between different types of cells or tissues. For example, it is used in the Papanicolaou stain method to stain cytoplasm in a light green color.

In addition to its use in medicine, Light Green SF is also used in the food industry as a colorant. It is approved for use in certain countries, including the United States and European Union, but is banned in others due to potential health concerns.

Health Effects

While Light Green SF is generally considered safe for use in the amounts typically found in food and medical applications, there have been some concerns about potential health effects. Some studies have suggested that high levels of exposure to the dye may cause allergic reactions or other health problems. However, more research is needed to fully understand the potential risks.

Regulation

The use of Light Green SF is regulated by various agencies around the world. In the United States, the Food and Drug Administration (FDA) oversees its use in food and medical applications. In the European Union, the European Food Safety Authority (EFSA) is responsible for regulating its use.

See Also

• Triarylmethane dye
• Food coloring
• Histology
• Cytology