Basic Green 1 NEW

Basic Green 1, also known as Brilliant Green, is a synthetic basic triphenylmethane dye with a CAS number of 633 - 03 - 4 and a molecular formula of C₂₇H₃₄N₂O₄S. It typically appears as odorless metallic green crystals or powder, has a melting point of 210°C (decomposed), and is highly soluble in water (100 g/L at 25°C). It is incompatible with strong oxidizing and reducing agents and needs to be stored at room temperature generally. Despite its diverse uses in multiple fields, it is classified as a hazardous substance with mutagenic and carcinogenic risks, so its application is strictly restricted in many scenarios. Here are its detailed uses across various sectors:

1. Textile and Material Coloring

   It is a common dye in the textile industry, suitable for coloring fibers such as acrylic, silk, wool, cotton, and linen. When dyeing acrylic, it can maintain stable color even at a high temperature of 120°C. Besides being used alone to produce bright green shades, it can also be blended with cationic blue dyes to create fruit green. Beyond textiles, it is widely used for coloring materials like leather, paper, bamboo, wood, and straw products. Additionally, it is utilized in manufacturing lakes, which are important colorants for various coating and plastic products.

2. Chemical and Analytical Fields

• Acid - base indicator: Its color changes with pH values. It shows yellow when the pH is 0.0 and turns green when the pH reaches 2.6, making it applicable for pH detection in simple chemical systems.

• Chemical analysis reagent: It serves as an ion - association reagent in spectrophotometric analysis. It is also used in ion - pair chromatography for the determination of fatty acids and can be applied to the determination of sulfites.

3. Biological and Medical Fields

• Bacterial identification: It is an important component in bacteriological culture media. It can be used to prepare bacterial culture media for identifying Escherichia coli and other lactic acid - fermenting bacteria, as well as isolating and culturing Salmonella typhi from feces.

• Medical auxiliary applications: There have been studies on its potential applications such as antimalarial agents, dental caries detection reagents, and wound dressing materials. It also has been explored for use in medical devices like catheters and oral care products such as mouthwash. Moreover, it once functioned as a fungicide and antiparasitic drug in aquaculture, but due to its risks of causing mutations, teratogenicity, and cancer, it is strictly prohibited for this purpose in China, Europe, and the United States because it can accumulate in fish and contaminate water and soil.

4. Other Industrial Applications

   It is involved in the production of green inks. In the electronic and photoelectric fields, it is applied in the manufacturing of black matrices, color filters, and photoresists. Furthermore, it has been explored for uses in sensors and rodenticides, and there are also studies on its potential applications in cosmetics and cancer treatment, though these applications are still subject to strict safety assessments due to its toxicity.