Analysis of the Structural and Photophysical Properties of Dyes

Dyes and pigments have the power to make the world a more beautiful place. With a long history of use, they have diverse applications in various industries, including food, textiles, artifacts, and paper. This has led to extensive research on developing natural colorants from natural sources. The benefits of using natural colorants are numerous. They are eco-friendly, safe, and easily obtained from renewable sources. Natural colorants are also soft, lustrous, and soothing to the human eye. Additionally, they do not pose health hazards and offer no disposal problems. India is a rich source of natural colorants, with an estimated 500 varieties of colorant-producing plants. This mini-review explores fundamental aspects of colorants, including their classification, chemical constituents, newer methods of production and extraction, and prospects. Furthermore, coumarin and its derivatives have emerged as versatile compounds with various biological and pharmacological applications, including anti-inflammatory, antifungal, and antibacterial properties. This review highlights the use of coumarin derivatives as dyes and their impacts on the environment and human health.