1,3,3-Trimethylindolino-β-naphthopyrylospiran [Photochromic Compound](CAS: 1592-43-4)

1,3,3-Trimethylindolino-β-naphthopyrylospiran, also known as CAS 1592-43-4, is a photochromic compound. It exhibits a reversible change in color upon exposure to ultraviolet light. This compound has unique optical properties that make it suitable for various applications such as optical switches and smart windows.

1,3,3-Trimethylindolino-β-naphthopyrylospiran is primarily used in the development of photochromic lenses, smart windows, and optical switches. It can also be utilized in sensors and optical devices to detect UV light.

1,3,3-Trimethylindolino-β-naphthopyrylospiran is generally considered safe for most applications when used as directed. However, it is important to follow safety guidelines, including wearing gloves and protective eyewear, and handling it in a well-ventilated area to avoid prolonged skin contact or inhalation of dust.

1,3,3-Trimethylindolino-β-naphthopyrylospiran should be stored in a cool, dry place away from direct sunlight and heat sources. It should be kept in a tightly sealed container to prevent exposure to moisture and light. Optimal storage conditions include a temperature range of 15-25°C and a relative humidity of less than 60%.